shitty insertions, no traps or both?
Traps can be fixed easily with some shrugs, don't worry about that. The thing I'm noticing is that the left side (my left, your right in the picture) is a bit higher than the other. It doesn't seem like that big of a difference, and it may just be the way you're pushing them forward. You definitely have traps, it'd be pretty much a 90 degree slope from neck to shoulder if you didn't.
Can't tell about your insertions on your chest, if that's what you mean.
From what I see, your peckage is pretty small, so watch out.
Get a joocey chest before even focusing neck.
Do you not know the pattern?
Neck is like.... the last thing on that list. probably.
How about you go lift some weights then worry about posting naked pics of your DYEL twink body on an anime forum