Cute. You've done an excellent job of keeping them the sole focus on the shot without the background being boring. Nice colors against the brown water.
Don't take this the wrong way but as I see DPC as a learning experience here is my frank critique:
This comes across as a snapshot. By that I mean that I feel that anybody standing where you were with a camera could have gone click and got this result. I think a photographer should aim to do more than that. I may be wrong and perhaps you do have more of a story to your shot but the fact is that it doesn't come across to the viewer.
As an example, if you were in Paris and saw the Eiffel Tower you could hold the camera and go click. You'd have a shot that millions of other tourists have and would be good as a record of your holiday. I think at DPC you need more than that. You need to consider the POV - make it something that enhances the tower (include a flowerbed or kissing couple in the foreground), make use of lighting (dusk for shadows), composition (maybe include the buildings beside it to get a sense of scale).
I hope this helps and please don't be offended, I'm only offering an opinion.
Cute boys, maybe you could have got down a little lower to give them a little more size in the frame and maybe include something more than the muddy water?