Going to share my thoughts without giving too much away for those that haven't played or completed it yet. I enjoyed it and was challenged with the puzzles. Yet was also frustrated / annoyed with a couple of them, till I figured out what the small image bubbles meant. The learn as you play aspect is always something I'm a fan of. Also the music went well with each area.
There were only a couple of things I would have liked to see done differently, and this is just my opinion. First was after finding the first 4 obvious orbs I wandered about aimlessly trying to find the other 2. I ended up finding the other areas by accident. Perhaps you could have some sort of indication there is a transition between areas? Second in all the areas except the invisible maze one you can use the "L" key restart it. Not sure if that was on purpose or not. Third, still not sure what being able to move the portals did...
In all good job my friend, keep up the good work. Looking forward to February's game!