Hello there, Marlen from Messages on a Napkin here, doing what I always do and clashing some prints together ;)
Usually when I use prints on both my skirt and blouse, I try to make sure that the bottom print is bigger and the top one is smaller. That way there is a balance and it all looks proportional and pleasing to the eye. This look in particular is one of my absolute favorites because of all the different things going on: a neon belt, a chambray collar, a quirky clutch, and earrings that remind me vaguely of Lisa Frank (haha!) On paper it sounds busy, but in person it all just...works!