Initially I made only sky green, but felt the scene looked worse that way. Thus went all in with enhanced greens everywhere, enforcing water ripples (very easy as the original had the ingredients present) etc. The red vegetation acts as a counterpoint to anchor the composition.
About trimming the foreground to make a panorama-lime frame, I decided against removing parts of it as it apparently is required to give breathing depth to the overall scene. Cut away and the scene becomes lifeless and flat, no depth at all.
By the way, learning to use a program such as Photoshop or equivalent (Gimp is freeware and quite capable; surely more alternatives exist) is well worth the time and efforts invested.
