it was already slightly purple, but when shooting scenery, I always shoot on RAW, that way I can have wayyyy more room to edit at home. In this case I upped the purple colour in the white balance, plus a few other minor tweaks, that made only minimal change. to get the river looking nice, I also slowed the shutter speed down.
haha i thought you slowed the shutter speed down, do you have a tripod? i like to take photography myself, but i never edit my photos, i just like them how they are haha http://silencetamer.deviantart.com/ but you're great at photography, and i really like this photo