Bowtie 16x16
I used microsoft paint to the background. I know no maps have a white background, but I think it fits with the suit-and-tie formality and simplicity of the map. I added the gray line so you could see the path and know where you couldn't put towers.
Buuuuuut... if anyone wants to make a better background or help me make one it would be appreciated.

I also really approve of this path design. I've played all the maps ingame and looked at all the ones on the forum and there are none similar to this path design. I think it would do well in All vs All and Survivor modes. There is no obvious spot for a first tower, which makes the beginnings of games easier. There is limited space for towers in the endgame also, which should keep games shorter. Some of the maps I've played I dislike because the beginning few turns are rushed and critical, but the later rounds are slow and drawn out.
I would love to make this map better, so comments and suggestions are appreciated. I hope you like it I would be overjoyed if it made it into the game.

Edit: I've further cleaned up the raster and path image, and changed the path itself so that there are no diagonals. Instead the path doubles back on itself for one segment, which seems just as good. Please keep commenting and giving suggestions, I am willing to keep trying to improve this map =)
The new images and path are shown below and are available for download in the .zip file.