You do look good, you kind of remind me of Berry Demey (sp.)
Anyway, the back looks good, but it's hard to see in the group pic, try cropping to to show only you then you can zoom in a bit more.
Everything looks very good, maybe adding even overall thickness to move up to and compete at the next level, which is National of course.
I'm sure that you know what you have to do, but if I may, maybe a little more chest and back thickness, probably concentrate on Heavy BP for chest and Rows, Deads to add a little to the view from the back, plus both of those would add size to the arms. Great overall package and conditioning especially in the second pic.
Good luck.