Relatively unique main objective, decent non-linear map layout, nicely balanced challenge gameplay wise - I can safely say that Mikko's first Thief fm does a good couple of things surprisingly well. I think I can only complain about the aesthetics (map was lit way too brightly, and the texturing is a bit rough here and there). The custom tracks Mikko have used for ambients are quite nice, by the way. Might not exactly fit seamlessly into the Thief world, but still.

Anyway, nice first attempt, I hope we can see more from Mikko in the future.