A Solitary Island

Is it lonely?

There are those who welcome moments of solitude, carving out a niche in which to rest among the angular blocks and fluttering leaves.

[4] MATCHBOX

The symbols on the cubes can be different from the ones shown in these pictures, but their positions will be the same.
[6] HIDDEN ARCHWAY
[5] ARMILLARY RINGS
[7] LOGIC GRID
[1] HIDDEN PENTAD

To be added.
[1] SENTINEL STONES
[1] SKYDROP

Skydrops inside of Enclaves are known to undo themselves. That means that even if you have fully solved a Skydrop puzzle previously, it can be unsolved after you restart the game.
[5] HIDDEN CUBE

Video by Beananas on YouTube.