JarlFrank
I like Thief THIS much
Find cheaper professionals.literal thousands for a professional to do it for me
I'm having a couple short stories and my first novel illustrated in full color by various artists, with the purpose of publication in printed books. The most expensive of them charged 600$ for one full color painting, and he uses oil colors on real paper. The digital artists I got charge anywhere from 80-400 per piece.
Just search art websites for artists whose style you like, send them an email asking for their rate, and you'll easily find affordable ones. Many also openly post their usual rates. Especially Russian and South American artists tend to be very affordable compared to western ones.