It's a good habit to get into. It helps with the search engines too. You shouldn't have any internal broken links or missing graphics . Review the site yourself before we do. Wait until your site is finished to apply.
All sites are always under construction, so remove the signs.
Please don't steal bandwidth from another site by linking to their graphics. Some people have to pay extra to their host when they exceed a byte count limit. If you use someone else's graphics, give them credit. Check your frame sizes at multiple screen resolutions. What looks nice at one size might look horrible on another.