I think I completed it then. I can see all those colours. I assumed there would be more to find and a conformation in the game.
If you like some feedback then:
When climbing out of the hole at the start, I did find it a bit difficult. I used a tool in each hand (thinking the existing ones were demonstrating what to do). Then when I pulled one out to move up, both would come out and I fell back down. Later in the game you have to climb out again but are forced to use the existing spades and branches stuck in the wall. There didn't seem the need for any moveable objects?
The first time I played, I went to the top of the ridge and fell off the other side.
I did find it awkward sometimes when you had to jump between pieces of flat ground where one was slightly higher than the other (considering you can walk up the hill with no problem).