Okay, I am not really any architect (and I never completed my cartography course), but I am a long-time Dungeon Master (and thus used to drawing maps... and also measuring in feet
) and just from my opinion, it looks more or less fine, in the basic terms.
Maybe one question... how many people actually are there in the Mead Hall? (The original question that came to my mind in connection with the map was: how many horses? Like, if the stables are sufficient. If there are some riders of Éomer for one day, I guess that's not a problem, but there are probably quite many horses even permanently, so...)
As for the kitchen,
Groin, that is how it was placed my
LMP already in the beginning, I think... I don't see any problem with it being where it is, anyway.