I'd have a guess and say most of them...
Aside from the pictures of people, your posts look like they have been made on MS Paint by a 9 year old with ADD.
Create a brand, an image, a colour scheme and text FFS...not just a mishmash of wordart and stock backgrounds.
And something that bugged me when I had instagram - you don't have to post something everyday/mulitple times a day - you run out of shit to say very quickly and end up recycling old crap, which becomes apparent very quick.