Pretty good! I think if you would have used less BURPS and LURPS, and more rockwork pieces, it would have looked a whole lot better. Same with the castle. Other than that, great job! I like your curved bottom.
Thanks! I actually did build the tower entirely of 1x2 black bricks but it ended up looking like a big ugly blank canvas so I went with classic castle parts to give it a bit of contrast. I guess interspersing it with some grey would have looked better