Me and awesomesauce were gonna do this :O
cool to see we were on the same page with the idea tho, i thought it was original
nice jopb on it, our biggest concern making it was ingame readiability, good to see that didnt slow YOU down
Functionality: Alright, works as it should, but I'm afraid one would take much longer to read the message (if possible, because at a distance it'd be even a more PITA) rather than an image of the face... Good job, stands clear. I presume this is supposed to be funny as well, and executed in a positive way (quite easy to read, black on white, big size & clear type font). Another plus is the Menu Image.
Originality: No matter the quality of the skin, the originality should be rated at highest. Unfortunately, I've found a similar design (black 'paint' over white face) which affects the score slightly. If you'd have used another color, well, it'd have gotten a 10.
Texture: Really, it's quite hard to rate the texture, since there's 'none'. I don't think it needs any better textures...maybe just not a PURE white / black colors, since nothing (I'm 'quoting' from a post I've read before) in the world of TF2 is purely made of one solid color. Maybe add a shade, or some little phong or something, just to add some variety.
Notes: Simple ? Achieved.You even said it yourself, it's just a 10 minute job that, in this case, looks quite specially promising.