I agree we gotta see a shot of the
legs.
It looks like your
right arm (bis and tris) are lagging behind your left. Could be lighting, but if it's not try some iso movements, things with dumbells, so each arm has to do it's own work.
Lats and
lower back could definitely use some work. You need a strong core, and that starts with you lower back, especially if you play sports.
FOREARMS And lastly, lateral (side)
delts. In the back double bi and when you have your arms crossed you can really tell that the delts are lagging compared to the lower parts of your arms. When you start to grow and focus on your biceps and triceps you have to really make an effort to keep your delts and forearms in line. It looks like yours got left behind, so look at that.
Now I only critique people like that when I see a lot of potential, and of course at 16 you look awesome. You have to be playing a sport. You look like a receiver to me but either way at your age you look really good, many 20, 30, and 40 somethings would love to have your body. Your lower chest looks really good and when you do movements to work those shoulders (i.e. overhead press) you will help your upper chest balance it out. Your abs look good and you have a nice low bf%.
Make some small adjustments, keep up the great work, and post some
LEG shots.