First time on fake skin and my designs are really light, any ideas what I'm doing wrong?

I can't tell if i didn't go deep enough, if the fake skin is poor quality, or if I somehow wiped too much ink away? I was worried that if I went any deeper it would be too deep and chew up the fake skin, but it also just looks like my ink didn't hold. I'm using Dynamic Color CO. Black ink if that makes a difference. (Also im aware my lines are wonky as hell, I'll definitely be working on that) thanks in advance!

I can't tell if i didn't go deep enough, if the fake skin is poor quality, or if I somehow wiped too much ink away? I was worried that if I went any deeper it would be too deep and chew up the fake skin, but it also just looks like my ink didn't hold. I'm using Dynamic Color CO. Black ink if that makes a difference. (Also im aware my lines are wonky as hell, I'll definitely be working on that) thanks in advance!