A huge net is required. Not sure that I like the choice of processing. Perhaps you were limited to this type of processing due to a quality in the original image, but I dont think that it has worked well here. Perhaps more saturation to the people would help it out a bit as they tend to blen into the bridge slightly. Good luck
Great idea. For this theme, you might have gotten in much closer to the dad and child, and leave out the rest. The rest of the shot doesn't really add to the message you're trying to convey.