I did a lot of character artwork in preparation for Invasion, starting with model sheets that other artists taking part in the crossover could use. These weren't professional-level model sheets — I don't think I've ever done any of those, and in this particular case, the artists would be free to reinterpret the characters in their own styles. I just wanted to lay down the important characteristics of each character.
Model sheet for Kel, including her colour scheme and storyline-specific changes to her outfit. The neck brooch was added at the last moment to replace a multi-coloured bead necklace that I felt complicated the character too much.