I'd love to see this challenge theme again. Life took a turn and I wasn't able to focus on it enough to even get to the mapping part of it but it was...
I've had to add colour to a greyscale map in the past as well, and found it surprisingly challenging as well. But this came out very nice, good job!...
I'm having to withdraw. This, sadly, isn't going to happen for me. I've got too much on at the moment. I've taken on another two writing assignments...