The chain link fence really detracts from an otherwise pretty picture. I guess the blue is the alone subject, but it's right on the edge and is not sharp.
Try using the Save For Web function in photoshop, from there you can set your image size to 640 pixels and the file size to as close to the 150 kb size limit. Here is a little DPC tutorial to help you through it. Hope this helps you out.
I am just not feeling this ... it doesn't have any pop to it ... the background is just a pixilated mass of pink blue and white looks like there may be noise issues ... but I cant really tell... Yyyyyeah .... I got nothin
The grain does not help this image at all. The fence is very distracting. Your idea is good, but it just did not come together in this shot. Keep shooting!