That looks really terrific so far! I can't wait to see it finished.
Two suggestions, and neither have to do with the castle.
When using thumbnails on your website, create actual thumbnail images, that is, very small versions of your larger images. This will make browsing through your pages for us dial-up users much easier and faster. It will also cut down on the bandwidth used and your geocities account won't die so easily.
My second suggestion is to stop hosting your pictures on your geocities account and instead hosting them on Brickshelf. Brickshelf has no bandwidth restrictions and linking to the pictures won't eat up any bandwidth from Geocities.
Give a man a fire and he'll be warm for a day.
Set a man on fire and he'll be warm for the rest of his life.