Finally decided to get rid of the posters on my wall...

[IWEARGOGGLES]

So I just bought a new bedroom set and realize it would look goofy to leave up all of my band posters.

Anyways, I was thinking about what I should put on my walls, and decided I might like to put a few of my own pictures up. I have gotten a few recommendations of where to take them to get blown up, but I'm not sure what I need to consider when thinking about this kind of thing.

I'll post the 4 pictures I was thinking about getting blown up. Do I need to delete anything? Should I change the way the picture looks? Crop it at all? Clean it up somehow? I'd really like some advice on this.

And no, I know nothing about photography so don't make fun of me if you think these pictures suck. I really, really like them.