Mask... Helmet... uhhh... Head of Miles "Tails" Prower from Sonic Heroes. You can find it in "mods" section in mask shop. My first ever mod, god I hate Diesel engine.

Special thanks to:
Hoppip - for helping with making the model look smooth and not shiny
NoNamewouldFit!#0190 - for making me accidentally make the mod work
MWS Discord - for an immense help with understanding how to make my mod work