Welcome to the forum!
Nice scene there, moon beautifully shining through the canyon, reflecting over waters.
The reflection over water with water ripples is nicely done.
Though as typical of any backlit scene, all other elements are too much desaturated - adding a bit of light on them will make the scene even better.
I do see a red light coming from right, but it’s a bit confusing, especially it’s effect on the rock on left behind the bushes which has become fully red due to it.
Actually the thing with lighting is that I am a beginner and I am still learning about lighting the scenes and Composition. Will take some time but I hope to learn soon by the whole Blender Community.