First off, the art style is really nice! (Evokes Sable, like Dee noted.)
Speeding around the map, especially with the smaller, faster objects, is so satisfying. I spent some time just going around the place for fun in between doing tasks.
I liked the setup, with the three objects you needed to collect to bring to the obelisks (?). Some notes on each of the three main puzzle bits:
1) The red one (Barracks, I think?) was cool. I liked having to get up with the floating cube, and it teaching me that mechanic very elegantly. Though I got to a point where I think I cheesed my way to the end rather than doing the proper solution (maybe?). I could only come up with three objects (the two red balls and the purple cube), but I needed four. I searched around and tried all kinds of things, but couldn't manage to figure it out. So I eventually let through one ball into the back area, and then went back for the cube, which will occasionally randomly bounce high enough to get over the fence, and finished the puzzle that way.
One other thing was that the big pillar thing I got from there was basically impossible to turn, so I ended up having to use the triangle relic to manipulate its direction to the right spot. (Don't know if that was the intended solution, but it was pretty frustrating, so I imagine not.)
2) The green one was a nightmare until I managed to get the little cube thing to start moving. It felt like a mercy put in for people who couldn't do the climbing thing, but I'll take it. Also loved how it felt to float around with the triangle relic thing; was very nice.
3) The yellow puzzle was the one I couldn't figure out. After some amount of zooming around, I found a bunch of yellow objects, but I was missing the last one. There was one I knew about that I just couldn't manage to get (the one on top of the pole), no matter how many times I tried. I *think* the intention is to go really fast with a small ball and then go out of that above the object and then go into it, but I couldn't manage it.
And then I got stuck in a fence and had to quit out.
Still, I had a lot of fun with this; good luck with the results!