Very nice. Would suggest doing something to differentiate foreground and background objects. Some of the trees looked like they should be platformable objects.
Viewing post in Watch Out, it's a Pitfall! jam comments
Just to give you an example. After getting the input prompt to shift the camera up or down the player sees a hidden area under their current position that open up to water with a tree extending from the bank nearly parallel the water. This seems like a prompt to jump down on the tree to enter the lower platform.