Photographers
 

If you want/need a set cont. 40 pics with the same quality and amateurfeeling as Donnys photosets, do you need to shoot 200-300 to find 40 pics that is "acceptable quality"??

depends on how good the photographer is and how good the model is. with some models you need to shoot 2-300 shots to get a decent set - with some models only 100.