so, this is more of painting question but i need to know which color should be which and how does the water surface forms the shape we see? noticably it reflects the sky above, the water below, and then the person and everyrhing else of the same level, but how exactly?
is there a diagram on how these colors models themselves from?

someone would tell me to use perspective grids but i beg to differ since the exact colors and proper positioning and curve, directions is still a matter not resolved by simple perspective...