@Torstan - yeah, I've got the shadow on top of the tree, rather than under the tree, somehow the shadow which is a transparent black is graying out and lightening the tree its sitting on. I ought to move it below the tree.
OK, now for a quickee dungeon map - 2 hours it took. Rather than a true dungeon, I opted for the ruins of a dwarven mine complex deep in the Underdark. I'm sending this to Paizo as well. Now about a wilderness map...