In looking at your picture, it looks as though most of you chest is coming along but that your pec delt tie ins need some work.
Using and incline bench at 45 degrees, or LESS, do incline dumbbell flies at the end of your workout. Concentrate on form, and getting a full stretch of the affected muscle groups. For someone of your developed a 15,20, or 25 pound weight should be more than enough. Your rep range should be in the 8 to 25 area. Don't lift like a moron and fuck up your attachments by lifting in bad form. You should do the reps through a full range of motion. Towards the end of each set, do a stretch, which will help to lengthen my muscle and is good for the attachments. Longer muscles are bigger. NEVER STRETCH AT THE BEGINNING OF A WORKOUT UNLESS YOU ARE A HIGHLY SKILLED ATHLETE WHO STRETCHES DAILY. Always stretch a WARM muscle. Only an idiot stretch a cold muscle.
Do NOT put the incline at more than 45 degrees. That will involve more anterior deltoids which you do not want.
In order to avoid future should impingement, make sure you do reverse flies with dumbbells (working your posterior deltoids) with your back or shoulder day. So many times, I've seen folks lift like morons and over-develop their anterior deltoids, which causes their shoulders to roll forward and cause impingement. Don't do that. YOU MUST WORK YOUR BACK, AND POSTERIOR DELTOIDS, TO MAINTAIN BALANCE AND PREVENT SHOULDER PROBLEMS.