Decided to bite the bullet and try to get the waterfall done.
Took the trestle and trees up and put a blue base coat down first.
Then airbrushed to soften the edge.
Watched a few videos and settled on woodland scenic water effects for the falling water.
Let it dry over night and it got pretty clear.
Hoping to poor the epoxy tomorrow. Never did water so it's a bit intimidating.
Will post progress as I go. Fingers crossed!