1. looks a bit blurred to me and compositionally I don't think it works. I'd have liked to have seen the pencils a bit more even I think
2 is ok but lacks a bit of interest for me
3 Meh, looks a bit warm but exposure is ok. Looks like a cool place to hang out.
4 IMO your strongest shot here, it's nice but her feet look a little too blue but the skintones at the back are good. I like the composition too
5 Nice, but the bee centered in the frame makes it a bit static for my liking. There's also quite a bit of dead space at the top and I think I would have preferred a more natural background
I like things in the center don't believe other people do what you think works ;-) All your photos are well done and the only thing that matters is that you like them.