holy heck. i can safely assure you that you can charge pretty much whatever you want for your art! it's such a clean, solid style, and you seem to be able to draw many things.
i would definitely not charge anywhere under 100mil for any of your polished pieces. i believe you could charge higher if you wanted (150m+), since it's absolutely worth it, but it might not be easy to find people with that kind of cash lying around unfortunately! so business would be a bit slow. your call entirely.
i'm gonna ref a few other people to this thread so you can get many opinions from people who aren't stingy about art. always a good thing to do.
if you open commissions i'll be right there. 8)
welcome to res dex!! uvu