This looks like it's for a christmas case, is it?

this is a pretty cool concept, and it's executed really well for being your second hat (judging by what you have published, at least)!

the shading at the bottom is a bit weird, though. in blender, i think you can fix that by adding a seam on that edge loop. there's some other things, but dudetheninja already mentioned them below.

overall, this is pretty good! there are some things that could be improved, but it's still great!

dice hat

Oh, thank you! I'll look into it.

I do like the hat, but I feel a) you need to provide more renders (in HLMV or whatever, I can help with that if you want) and b) the texture, judging by the preview, is too shiny - maybe it's due to the lighting of the SFM promo, but it could help with having a better phongmask/normalmap and maybe some brushstrokes in the texture to give it that TF2 painted (and also maybe a more felt OR plastic, depending on what type of hat/dice you wanna go for) look. The model is great, but there is definitely room for improvement. If you want me to assist, feel free to ask!