@Heather-Boyd If you work with it more you end up getting better. I have more problems with environments rather than characters. I want to draw the characters but the environments I could do without sometimes.
I don't know that there isn't a market for environmental art. In animation the person who does background art is separate from the person who animates characters. It's the same for video game design. Also I'm sure there are non-fiction books that are centered more on the backgrounds than the people themselves. Text books will often have inanimate objects to draw rather than people. If we are talking about fine art, landscape artists seem likely to be able to make and sell a landscape. Portrait artists usually need a model release form (though this isn't always the case) and you need to find a person who wants to buy another person's likeness! Look into it and see if it's what you want to do! Sometimes it's more finding the right options rather than there not being options related to what you love!