Make the length of the line as wide as you want the eye to be. Make the line thick near the middle, and then have it get gradually thinner the closer it gets to the ends.
++++++++++
One-sentence summary -- Sample Female Anime Eye. Draw a downward curving line for the upper eyelid.

Yes, it seems remarkably uncomplicated and highly un-technical, and there are really no acronyms to cover it. However, it's important to realize that from the outset, you have to like the sound the amp makes relative to the style of music you play. A Marshall amp sounds absolutely amazingif the style of music you're playing falls in to the Van Halen, Cream, or AC/DC camp. A Fender amp also sounds amazingif you're going for more of a Stevie Ray Vaughan, Jerry Garcia or Dick Dale sound. The best way to determine what an amp sounds like is to play your guitar through it. If you are more of a beginner, not confident about your chops, but want an amp you can "grow into," have somebody at the store play it for you. The critical issue here is how amp "a" sounds when compared to amp "b," so do whatever it takes to get a good comparison. Amps are rated by wattage rather than physical size (although high-wattage amps do tend to be physically larger). Lower wattage tube amplifiers will tend to create harmonic distortion at lower volumes, which is preferable in practice, studio, and miked stage performance. Higher wattage tube amplifiers will distort at higher volumeswhich will require more creative mixing for live situations. The wattage has an effect on both the actual and perceived sound volume. In general, it takes 10 times the wattage of an amp to double the perceived volume. For example a 10-watt amp will sound half as loud as a 100-watt amp The wattage and cost of an amp are rarely related, as 10 watt amps can be two, three, or even ten times the cost of a 100 watt ampdepending on the quality of the components and the design. A knock-off 100-watt solid-state amp is inexpensive to produce compared to a boutique 5-watt tube amp. The sound quality experienced from an amplifier can be determined by many things, including (but not limited to): the preamp tubes used power amp tubes used the wood material used for the speaker cabinet the type of speaker cones the resistance of the speakers the guitar used the cables used the effects used the pickups in the guitar and even the fingers of the player. There are two main categories of guitar amplifiers configurations: combo and head/cabinet. Combo (combination) amps combine the amplifier electronics with one or more speakers in a one-piece package. These are generally smaller, as combining a powerful head and a couple large speakers can quickly push an amp into the "weightlifter" category. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/7\/7f\/3343-4b1.jpg\/v4-460px-3343-4b1.jpg","bigUrl":"\/images\/thumb\/7\/7f\/3343-4b1.jpg\/aid3343-v4-728px-3343-4b1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"<div class="mw-parser-output"><p>License: <a rel="nofollow" class="external text" href="https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/">Creative Commons<\/a><br>
<\/p><p><br \/>
<\/p><\/div>"} Head/cabinet arrangements solve the weight problem by separating the speaker cabinet (cabs) from the heador amplifiercabinet . Heads can be free-standing units that generally sit atop the cabs, or they can be rack-mounted units which are great for touring and more complex guitar signal chains. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/81\/3343-4b2.jpg\/v4-460px-3343-4b2.jpg","bigUrl":"\/images\/thumb\/8\/81\/3343-4b2.jpg\/aid3343-v4-728px-3343-4b2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"<div class="mw-parser-output"><p>License: <a rel="nofollow" class="external text" href="https:\/\/creativecommons.org\/licenses\/by-nc-sa\/3.0\/">Creative Commons<\/a><br>
<\/p><p><br \/>
<\/p><\/div>"}
++++++++++
One-sentence summary -- Use your ears. Evaluate your needs. Understand what defines an amp's overall tone. Learn the categories.

Never dive alone; make sure you have a partner who will be with you the entire time you are in the water. The "buddy system" is essential to freediving safely. Your buddy is responsible only for you and you are responsible only for them. One partner is always on the surface monitoring the diver and ready to provide aid if necessary. These are crucial pieces of equipment for freediving, and it is important to choose masks and snorkels that are comfortable and securely fit your face. An air mask should be low volume. When freediving, you will need to equalize which involves exhaling through your nose to balance the pressure. With a low volume mask, you don't not have to exhale very much to equalize; this means you use less oxygen. Air masks should be made of tempered glass so they withstand the water pressure without breaking, and they should fit securely to your face. To test the fit, hold a mask to your face then breathe in gently through your nose. If the mask remains on your face after a few seconds, it is a good fit. Snorkels should be easy to remove and comfortable to wear. For convenience sake, look for a snorkel that will attach to your mask. Fins are another important part of freediving gear. They help you to move efficiently under the water. There are two types of freediving fins: bi-fins and monofins. Most beginners should start with bi-fins. These resemble scuba diving fins but are longer. Most beginners choose soft or medium-soft blades. Make sure they fit securely and are comfortable, as you will wear them throughout the entire dive. A monofin is a single fin that you place both feet in, like a mermaid tail. They are more effective than bi-fins, but much harder to master. Weight belts are belts designed to have diving weights easily clipped to them. These weights prevent you from floating to the surface as you dive. Lanyards are used to attach you to the line. This helps guide your descent, and it is an important safety device. If you black out or need assistance, your partner can travel down the line and know precisely where you are located. Not all freedivers use weights or lanyards, but they are useful pieces of equipment, especially for beginners. If you are diving with a class or group, a line or buoy will most likely be provided. If you are diving in cooler temperatures, an exposure suit and gloves will be necessary.
++++++++++
One-sentence summary --
Find a buddy. Buy your air mask and snorkel. Purchase your fins. Buy your weight belt and lanyard.