I replicated the streaking (running paint) you saw by extreme adjustment to the luminance slider. Generally this slider is used pretty conservatively.
There is another way to do selective color adjustment in PS through the Image/adjustment/selective color sliders. These have some advantage as they allow one to make individual color adjustments on the white, neutral and black areas of the image as well as the standard colors. Increasing the amount of blue in the white (carefully) would allow you to tint the sky and reflection slightly.
Glad to see you playing!