Defo got water in it and needs sorting
Re the coolant leak, it may be coming from the drain tap at the front bottom of the pack? or any of the larger pipes, best way to find it is by running the engine and having a good look.
Re the colour scheme...2/3 green and one third black, the black used to go on sharp edges and corners with no defined shape
Shape
Shadow
Shine
Silloute
Spacing etc etc