Maybe I'm doing something wrong, adopts is my way of paying debts, but lately it's like a dark spot on me, maybe I need to draw something else to interest people?

Considering quality kobolds are hard to come by, it's not that mate. I didn't grab a bunch because of that, I loved the designs. Have you considered tutorials for kobolds or bases? There is an entire untapped world of potential there. Try to be more active on FA too. Your art is great, Rev. I think refining your style and a little experimentation would help you in the long run. Check out other artists and grow. ^__^