Need some feedback or something.

Okay, so MadMarine and I have been building towers (of a sort) and now that we have two completed (but undecorated) towers, we have no idea what to do with them (besides decoration). Theyre not meant to be identical, but i was hoping that i'd get some feedback on them and maybe some ideas on what we can do with them, how we could extend them or add to them.

now that you have the scturcures in place and know what you intend for them to look like (in terms of size), you could replace the cobblestone, though saying that towers/castles do look good with cobble..
or netherack.

could build a wall all around you towers? then build paths, inside leading to various places (just ideas here) :)