Well these are a good start! Are you familiar with http://www.spoonflower.com ? Might be a good place to see which patterns work well etc.
Thanks :D! Yeah Spoonflower is a great place, I have a few patterns for sale there as well, but I never seriously considered it because I don't think you'll earn a lot there. But it's nice to see all the popular patterns :) !
These are really cute! Love the cats >^..^<
I'm glad you like them ^_^!