Opinions on my art?

I've been thinking of opening an art shop on Gaia, but I'm not sure what to price my work at. I do line art mostly, and I was wondering if I could get some feedback from you guys about pricing. Here are my samples.

Spoiler

i like it sell them around 10-25 dollars and up.

Cool ^_^ Thanks!

Edit: I also did a colored pencil version of the first headshot as well, though I dont think my coloring is very good yet (it was good practice) so this is what the color version looks like:

Spoiler

It's lovely art, I'm sure you'll get a lot of buyers! You dont see enough traditional artists these days.

Thanks ^_^

You're welcome.