Thx, glad you liked it! Yeah, I didn't get the AI version in time (got it done to some extent now tho, if you're interested - you can check it out).
As for size... There are also some cool looking canyons & cliffs, but I still didn't put in a camera featuring all that in a nice way. Plus yeah, a lot of optimization could probably be done without sacrificing visual quality, it's just not my strong suit... yet. I will either learn do it or call someone to do it on this project in the future, yep. :)