First Time Photoshop

I took an intro photoshop class my freshman year and I kinda remember what to do but not so much. I want to thank Zophia-is-a-weirdo for suggesting gimp. I jut cut pictures of my family and added them into pictures I found on the internet. Not the most advanced technique but I'm getting there, hope you like. And if you could give me any feedback or advice, that'd be nice too :)