Like Arnie said not my screenshot's. But it's using the ENB series graphic mod. With tonnes of others like texture packs, car models etc.
No it's not really playable at that quality, I'm sure some will be able to though.
My system runs it at about 12fps with all graphic tweaks on;
i7 2600k
GTX 560Ti
Corsair XMS3 8GB
EDIT: Those shots don't even have ambient occlusion turned on so you can get the game looking a lot better.