Overall Good, unique setting and nice balance. sometimes zeds can't recognize at center yard
but not big problem.

Pretty good map, I'd also recommend making the distance fog match the sky color as it looks odd the way it is.

Looks cool, but the lighting is boring. Everything looks the same, add some dark areas (maybe flickering light somewhere) and maybe a proper sunlight which is not 100% white.
Lighting is the most important tool to create atmosphere and mood.
Keep it going! ;)