Pros:

-It's looks better 
-Better than L4D1 ( In L4D2 ) Icons
-It gives a l4d2 style
-Perfectly great

Cons:

-They look like they got punched in the face ( Eye Mark )

Conclusion:

Fits perfectly,! AWESOME!, L4D1 survivors icon set that matches the rest of the L4D2  survivors icon set. Great work!
Highly recommended. For icons fully in l4d2 style :) XD