Portfolio Fun

I've been wanting to dig into AE for some time, so I gave myself a deadline and decided to create a series of gifs to go along with the projects on my portfolio site. I'm very new to After Effects, but this class covered so much, that I only had to do a little googling here and there to figure out how to get a certain effect I wanted. Thanks for the great class!

I do have a question though...a few times, I found that the colors changed (darker) when importing them into AE. Any idea why that might have happened?