You can look at say, https://en.wikipedia.org/wiki/The_Wedding_at_Cana and quickly get that yup, this took a whole lot of time and effort.
But AI has nothing like that. Some things that look like an awful lot of work it spits out with ease, some things that sound simple can take a whole lot of fiddling.
Like the other day I was playing with DALLE3, and for whatever reason it didn't want to place things on a table.