Gleb:
What you need is an illustrator, not a graphic designer. You're asking for original artwork and the only way you'll get it done for $75 is to hire an art student who is looking to add to his/her portfolio.
If, once you have the art, you then you need the graphic designer to do the layout, background, and final output. That you might get for $75.
So I would start by asking around community colleges, art schools, high schools, etc.
HK