My first thought was the same as some of the others before me in that the textures aren't as good as the drawing itself (and does detract from it at the moment). That said, if this is a WIP and you're confident of the final style then I very much look forward to seeing the end results. Mixing hand drawn illustrations with some realistic textures is hard enough (Mike Schley does this a lot with some of his WOTC maps and even though I love his work I really prefer it when he barely uses textures) so to make map where its primarily (or solely?) textures is a big challenge, at least I would find it a challenge to do it skillfully.

So again, I really look forward to seeing how this develops so keep us in the loop!