Here's how I described Chroma when I commissioned the art:
Description: A D&D wizard who uses spells like Color Spray to blind opponents with all the colors of the rainbow.I think it's amazing how well AvatarArt was able to match the image I had in my head, while adding tons of little details. And I'm especially grateful they went through all the rounds of revisions necessary to create the boiling bubble, which I didn't have fixed in my head from the start. In the beginning, I thought the most I could expect them to create was a portrait of Chroma standing outside White Plume Mountain, which would basically have been a tiny volcano in the background. But the background just kept getting more dynamic and interesting the more ideas I bounced off them.
A chameleon familiar, shifting colors from red to yellow. His name is Skittles.
An ankle-length black robe with a thin gold braid spiraling around the body twice and up the right arm. Beside the gold braid is one of dark green, blue, and red for a rainbow effect.
Holding his dagger overhead in his right hand, pommel up, point down. The prism in the pommel is emitting a flare of colored light. His other hand has a rainbow swirl around it, the start of a Rainbow Pattern or Color Spray spell.
Chroma's schtick is color; his favorite spells are Color Spray, Glitterdust (in red, green, and blue glitter), and Rainbow Pattern. The prism in his dagger's pommel is the focus for Rainbow Pattern, but it's also enchanted with the cantrip Flare. Chroma's too flashy to go totally invisible and sneak attack people, so the flare when he hits advertises his presence and dazzles them for a round. He can also pop a flare to give him +5 on his Bluff check to feint in combat and set up a sneak attack.
I'm hoping I can find someone to print it so it will look as good as it does on my computer screen. Big props to AvatarArt!