Well shooting from a pure asthetic stand point can be difficult. are you skinny? not skinny? fat? Fat laying on the muscle makes to hard to see the shape of your muscle currently to even guess as to how it looks without a layer of fat.
That being said you cant necessarily mold your body into a photo. Everyones different genetically and structurally.
Best way is to just develop your chest using a wide variety of excersisces. Dips, flys benches, use barbells dumbells, cables, pushups. Vary grips...
I think you get the idea.