Are my pictures good?

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http://instagram.com/emileh_cx

A few of my pics won a gold key in Scholastic art Contest over the summer, but I was wondering if I could get feedback on my more recent pics; I'm just giving the IG because it's easier to view than my flickr, which is completely unorganized.
Usually when I post on yanswers people just say its poorly constructed and "teenage snapshots without meaning" but if my photo is already balanced, I don't necessarily always use rule of thirds, and they do have meaning, nonetheless. Feedback?
Most of the pictures are shot with a 24-105mm 4.0 canon lens, but some are shot with a 50 mm 1.8
Also, they're not all of me. I have about 3-4 models in my feed, but given the fact that I'm only in highschool, most people are too shy to model for me, so I take pictures of myself. I'm doing a 365, so I don't have someone to take pictures of everyday. Sorry if I appear psychologically damaged to you >_<