Stop wearing 1/2 shirts and wear those with sleeves. Also stop wearing t-shirts under your shirts. Some other shoes that fit your age better would also be pretty cool. You have some potential but you don't use it. Fit of the jeans is nice btw.
I don't tell you to wear suits just because you're older then 30. But you really should consider wearing some more mature shoes and long-sleeve shirts, would look a lot better.