I could care less if you're using a disposable, a Hasselblad, a Linhof, or a Nikon...you're WASTING 1/3 of the frame on many of your verticals of people.....just utter crap compositions, with 1/2 to even 1/2 of the frame empty and devoid of anything interesting. That's the way I would describe your single-person snapshots. Your multiple-image/reflection type photos are your strongest suit, by far. By far. A few of those are really quite interesting. Multiple points of view, in one piece of art....hmmm...there were some old dead dudes that explored that idea nearly a century ago...the idea's fallen out of favor, but you seem to appreciate that type of visual sensibility. I know a lot of younger people like the scattershot nature of wildly-fluctuating post processing, odd color casts, and marginally correct exposures rescued in post, but I think it looks sloppy and shows weakness of craft. You'll do okay I think on the artsy end of things. I think studying, and practicing, composition would really help you.