A very useful and much needed addition to the wilderness range of tiles (example adventure maps would be nice sometime...) the only thing preventing this getting the full five stars is that somehow it's not quite as 'crisp' as the previous sets. The water, whilst very nice, just doesn't seem as well represented as the murky green stuff in the subterranean tile sets. Perhaps a darker blue would have worked better, or sharper delineation between the water and the shore? I don't know.
I do plan on using these extensively in my campaign, however the above comments still stand.