Poster: If something don't look right, chances are it's not. I cant fathom someone installing trim like this, even a novice would have likely done much better, but a professional home builder?
Clues of incompetence: butt joint with profiled trim, scuffed scratched painted walls, trim looks scuffed & unpainted, drywall dust and/or paint on the floor.
In a nuttshell, it's not acceptable work. Have it corrected and do not release final check to builder until then.
Caulking is not a substitute for quality......
"You must become one with the wood grass hopper"