Comment on Hannahhoo's profile

I take my photos in and around my town. I just try to keep a camera on me in  case I see something that I think will make a great picture. Some come out amazing, some are rather terrible. The picture you liked was from a series of photographs taken while I was tearing down a dilapidated shed on my property. I took one photography class in college, but I got most of my skill from using motion cameras. Camera angles and set-up just have to be learned from hours of just plying my trade. What a lot of people don't understand [and this is aimed at the "grandma" part of your comment] is that with the storage capabilities that we have today, one can take thousands of photos in a afternoon and they'll all fit onto one SD card. From there, you start culling out the good with the bad.
Another way to answer the grandma section is that one needs to be spatially aware [light levels, focal point of the picture, the background/foreground for the subject of the picture, angles, your body position in relation to how the picture is taken], where as any grandma will say, "Aren't you darling!" And take three or four pictures of whomever she loves with no regard to any of that stuff I mentioned.
Tl;dr: Its a mindset you have to get into and practice often. But its imperfect as it is perfect and to me, that's what makes it fun.