Where can I get a picture of my dog made smoking a blunt in a artistic sort of way? Something we can hang on the wall. And how much would it cost?

Check the local art schools. They often have shows. You'll get out of the house and meet new people

I was wondering ...

How would their posting differ if the operator of this account was testing how much stuff they could get other people to search and look up for them?

I'd look at some of the more art focused mastodon instances and see who has art styles you like and are open for commissions.