Grrr. Maiden Castle. The only time I went there, my hay fever went into totally maniac overdrive. I couldn't breathe, I couldn't see, it was awful. There must be some sort of pollen that that I'm highly allergic to, and I haven't encountered anywhere else.
But, trying to set that aside, it's a difficult subject to photograph and I think you've done a decent job. The lighting is very nice indeed, and that cloud is just great. The foreground colour is interesting too, but on the other hand I can't help the feeling that Maiden Castle itself is a bit too insignificant in the photo.