I would say double what you're asking for, then stay there for a while. This is very cheap, and your art can and most likely will improve past tier 3 swiftly.

Yes, I agree. I think this art is too cheap as well

Far too cheap, I'm no expert but i'd say you can charge 15-25k per piece

Thank you guys. I just doubled everything. :)

Big advice.

Never use script/handwritten fonts to write prices and vital information such as rules.

It's impossible to read.

Those types of fonts are to be used in like two words or three, not more.