Can't be asked to read all the replies as most of them were people trying to be funny or look clever or spamming their sites. Heres some advice.
Firstly do you want to be a photographer or a pornographer? They are not the same thing and you need to decide. With modern digital cameras anyone can point and shoot and get it into some sort of decent image, those who can't should give up right away.
What niche do you want to shoot? Solo girl can be anything from Playboy Babes to Amateur Grannies. One will give you no trouble and probably a blow job after you finished. The other will give you all the trouble she can think of and slap you if you even mention sex.
If you want to be a pornographer shooting Amateur how good are you with the opposite sex? You need to make a girl who is only there for the money and has no intention of fucking anyone look like she will fuck the room for free. That's amateur.
I have a lot more advice on a forum but can't post a link here.
teen-porn-forum
Will find it on Google.