Fun little game, I played the browser version, so I hope the lighting issues didn't make it look too different from the downloadables, but the environment still looked good, especially with the purple hues when you first encounter the other Fauna. Also like the text box design, simplistic, but still has some flair.
I think I finished the game, after picking up the apple, but there's no confirmation, or "thanks for playing" screen, so I'm not sure.
I think some of the hitboxes on the thorns might be little big in some places, I know I got reset when I didn't touch one patch, but that's the worst thing I noticed outside of the bugs mentioned in the description.
Hoping you can come back and fix them, and maybe add some more levels that take advantage of the 3D environment to give some challenge or fun jumps. I haven't seen many HoloFan 3D platformers, and its always nice to have more!