Diva Challenge #35: Tile on Tile

This was the challenge from the week of 8/15, but I just got around to scanning it. The challenge was basically to create a tile within a tile. I ended up making 2 of these because I wasn't very happy with my first attempt (it bugged me that the inner tangle wasn't obvious).

Attempt #2 - In addition to the tile within a tile, I also enjoyed playing around with inverted patterns on the "outer" tile.

Attempt #1 - I think the inner tile is the egg-like shape in the middle.