If you're looking for something to color but don't have a lot of time to spend doing the flats before you get into the coloring, feel check out some of the great flats I've collected: http://stacyraven.deviantart.com/favourites/44279345
There are hundreds of great images there that have already been flatted for you.
If you don't find something that strikes your fancy there, you can check out some of my own flats: http://stacyraven.deviantart.com/gallery/30474025
And you can always check out the flats over at at #Flats-for-Colorists (https://www.deviantart.com/flats-for-colorists) http://flats-for-colorists.deviantart.com/gallery/ and :iconComicTeamUp: http://comicteamup.deviantart.c