Just perusing random posts and caught sight of this and felt through the lack of comments a desire to comment (and cause I wanted to help and you again peaked my interest into textified photos for the first time in awhile).
First- Good job on what you've done. I don't want to knock anything because it's further than I would have got on my own, trying to do something like this, but (there is always but)... I like the concept and where the image was headed yet I feel something is amiss. As you said, you're super new to PS so I wouldn't even come close to expecting something more (I was far worse off when I started with PS, so congrats with that

). So what I think... is that it currently just seems to me, like it's half way done at this point, because I believe you can do a lot more with it. I don't know if you looked up some tutorials or not, but check out this youtube tutorial when you get a chance because I think you were/are headed in this direction and it could look even better than it does now. Right now- the honest feeling I get is something along the lines of an image thrown through a cutout filter, gray scaled a little, with text superimposed on the image with a rainbow tint added on. I think if you go along the lines of this youtube video- but tailor it to your taste, it could be something really great (I would leave the sunglasses as they are- and just textify the face and hoodie, etc..). Sorry for the butchered grammar, it's late and I've had a long and physically exhausting day
Anywho- here's the video link and good luck, nice job!: