A big thank you to all my friends who gave their opinions. It made it much easier to make my decision. I really liked the blue and green guy but the black cat is more me. I did take him into PhotoShop and brightened him up. I made him crisper black and added highlights to his eyes. I like the way he stands out against any color you use him on.
With this creative flow I'm on, he's going to be busy adorning all kind's of (digital) packaging, on business cards, banners, avatars, etc.
I saw him admiring a red stocking cap so I think he even has plans on becoming festive for Christmas! I hope he doesn't get tangled up in Christmas lights...