I would suggest finding other textures other than the standard.wad. At acknex unlimited (au.conitec.net) there are plenty of free resources for people with lack of skills in some areas. They have hundreds of models, a buttload (napolean dynamite XD) of textures, and script files you can look at to maybe find new techniques. For the crit on the screens...

-what lostclimate said, the textures are scaled and your using block too much.
-level looks a bit too dark, even for a horror game. Try using models for the cross thing and electricity box (or whatever it is) instead.
-crosshair is very distracting, I don't think the blue parts belong.