The castle customization contest really annoys me.
I find it very frustrating this is the route the dev's decided to go with customized castles its such a joke. Why would you allow customized artwork on the roofs of castles I don't know about others but for me personally I don't want others artwork on my house so that limits my design options.
I just switched to the Camelot castle and upon going through it I notice 4 brick tiles at least which are hidden out of place behind walls. Now everytime I step in the castle I am reminded how stupid this contest is and just get more annoyed with the process.
If your going to make these houses pre built selections you should at the very least go through them all and look for errors and display issues and fix them. And you should also remove art work from roof tops.