Copy.

This is basicly an exact copy except you changed the color a little bit, i give you a 2 for effort though.

Gave it a five because

I think that people need to learn and make better games by having one accepted.

Lots of good stuff...

but here is some advice:

-Your cursor design is somewhat confusing. Something a little more recognizable would be advised.
-The towers are visually functional but not very appetizing. Ditch the designations on their surface (the W on the slowing towers, and FIRE on the splash towers.) We know what the color means and the words aren't necessary.
-Confine the enemy's moving space to the areas in which they will actually move. The large open area implies that they may move within those alternative ranges.
-Mark, decisively, where the enemies will enter and exit.
-Give more detail on the towers in a separate page. I was wondering why the poison tower was so expensive to upgrade until I found out that it ALSO could have splash damage.
-Give more accurate definitions of what "high rate of fire" means. You marked the slowing towers as firing slow, and the poison towers as firing fast. The opposite seems to be the case.

I liked the game, and beat it. Overall good. Needs a polish.

Cheers