Illustration cost a lot because it adds a lot of value to products in a marketplace.
Having the right art on your book, card game, etc can worth a LOT of money.
That’s why companies pay $10,000 for a jpeg.
I have charged clients anywhere from $2,000-$20,000 for custom illustrations in the last few years.
All this discourse over prices is coming from kids who don’t have mortgages.
You need to get better at art so in 20 years you’ll be posted on random images boards with zero credit for 14 years old e couples to match with, that is your destiny man