I love this cosmetic, I really do but there are a few things that I think you could change to ensure its inclusion into the game. The main thing is that this cosmetic does not display enough of the team colours. Part of the selection critirion for TF2 cosmetics is that it must be distinctly recognisable as either RED or BLUE team. I recomend that you alter you magnificent design so that it is more in keeping with this concept; change the colour of the buttons to team colours and place a team coloured trim on the front where they overlap at the shoulder.

I hope this helps.