Dragons. When in doubt, just add more dragons. It always works for me.
![](http://i1371.photobucket.com/albums/ag289/Dracifer/Drachenschaedel%20Castle/10-14-14_1-36nbspAM_zps561c2ddb.png)
Though, honestly, I'd like to see some more people play around with flooring designs. My favorite thing in flooring is CTRL + F. It changes things so you can place a 1/4 triangle of flooring instead of a full square, and lets you be more creative with it. Here's an example from my Museum of Fine Arts, where I used the smaller triangles to weave together different floor patterns. I also rotated the brickwork so that I could use the edges to make square-shaped frames around the area, instead of just lines in a single direction.
![](http://i1371.photobucket.com/albums/ag289/Dracifer/Smaller%20Projects/10-03-14_10-13nbspPM_zpsc2934ffb.png)