Love it!

The iconography is clear - the spider is really great. The mountains look really good and blend nicely into the hills. Excellent work all round.

Two minor points at this stage:

1. The farm texture is too top down, it needs to be shrunk in the vertical direction to blend into the isometric perspective. At the moment the pattern is almost square.
2. Your trees drop shadow needs to come further forward (down the map). At the moment, the tree shadows are just covering the trunks - suggesting a lightsource from SW or due W. Everything else is lit from NW. Also, I think the tree to the SE of the spider is tall enough to not be in shadow there.

Your town symbols are great. The woodcut shadow works like a dream. It really ties the map together with one style. Excellent work.