I really like how this castle feels like it was real. You can see how diffeent towers could have been built over time like a real castle. Nice shape and feel.
It looks great, much better than anything i could create. If you are looking for constructive criticism, I noticed two things that seemed a little odd. If you are looking at the castle from the gate with the king at it, I feel as though the space between parapets on the right wall are too low. From looking at the Flickr stream there is an up-close picture of it, it looks like the space between the parapet goes all the way down to the feet of the mini-figures. I feel like that wouldn't be very conducive to the defenders safety. Secondly, I feel like with the level of detail given to the grass/weeds on the outside, there needs to be more detail to the ground on the inside, maybe some bricks that make it feel like it is dirt or a courtyard or maybe just weeds around the edges of the wall where the soldiers are less likely to step.