Each pack is different, as is each person's center of gravity. How one person loads a backpack may not be ideal for another. Generally, try to keep the heaviest part of your load centered close to your back and shoulder blades. Because a woman's center of gravity tends to be lower than a man's, some women find that putting heavier items at the bottom of the pack is best for their balance.
Some backpacks designed for women ride lower, with the weight concentrated near their waist.
On some of these packs, the sleeping bag rides on top of the pack. Experiment to see what works best for you. It throws off my center of gravity. External frame packs have several outside pockets and internal compartments, while most internal frame packs are basically large bags. You can use different-colored stuff sacks for each section of your gear, such as food, clothing, toiletries and stove fuel.