I would look at making the '13' blend in some, maybe blue the edges a bit and reduce its opacity. It seems to stand out compared to the Cross next to it.
I cannot believe I am going to say this, but it looks too clean. Some oil leaks, hydraulics, a little smoke at the casing ejection ports, some dirt on it some where something to make it appear to be 'used'.
A fine looking skin though, I will be happy to shoot at it!