He looks more appealing colored brown, but that's just my opinion!

That's what I though. xD

I really like the brown color scheme, especially the brown with the reddish hue; the colors make him look very lively. The gray doesn't seem to have much variation in it and it looks rather dull, perhaps that's just because of the markers you're using though.

I feel the colors give him a good, consistent balance with his eyes and the rest of his body, whereas the grays make it seem as if he's in the dark and it separates his eyes from the rest of him. Have you tried maybe making his markings darker on the gray one? It should help with the balance a bit.

Anyways, very cute! Every time I come to look at you and Cam's work you both seem to get a bit better.

Well I do try, and I'm glad you had the same thoughts as I did for the brown version. xD
I'll try doing more stuff with them.

I also like the brown better. He's soooooooooooo cute.