Having played through Hatch and Due, I can say you've really got the climbing mechanic nailed now! It feels really smooth and not janky at all.
I don't know whether it's because Hatch's was slightly different or because this was slightly shorter, but I managed to get the to top at world record pace and I'm just waiting for the run to be verified on www.speedrun.com/whydidimakethisjoke
Anyway, I really love the fact you've basically made your own genre of artistic, and beautiful game that revolves around climbing. It's very unique, and always fun to climb whatever awesome low poly thing you throw our way!
Great job, as per usual!
Here's my playthrough for anyone interested: