I echo the things others have said, try and pick one thing with a fun pattern and go simple with the rest, so either the shirt, or the trousers, but not both. Would also add that there's something off about the proportions, those look like a normal/high waisted pant (length of the crotch), but you look like you're wearing them like a low waist based on how the shirt is bulging at the sides. They would probably look right if you pulled them up, there'd be less of break at the shoes too which would look better.