The vid shows you what it looks like, instructions are in description! I didn't make this video but it's pretty awesome! http://www.youtube.com/watch?v=fOOQsLt5-S8
So basically, this is how Skyrim looks without textures. Hardly surprising... texturing is the single most important feature of computer 3D graphics.
I did a lot of modding for the first Unreal / Unreal Tournament. For some levels I created several custom hires textures. Even now, those levels looks amazing even if they probably contain 1/100th of the polys of a modern game and lack and post processing FX. 90% of the good looks of a game are due to textures alone.
TF2? Not even close. That's just Skyrim with solid colors instead of textures. Tf2 actually uses rather advanced lighting and shading methods to still make it look good. That just looks like crap...