Congratulations on completing your first level!
I've got to say the idea seems quite interesting, but the level is really too simple to do it justice. There's so much you could do to improve it! For instance, all of the screens are similar, and only the colors change. It's not really confusing, it's just colors changing. But if you added some critters here and there, maybe a couple of houses or something, etc., you could play with those things in various ways. The opposite sides of the cube could have the same critters/houses, or almost the same, or inverted (i.e. one has them in the uppermost part of the screen, the opposite one has them in the lower area..).. some sides left empty.. Or you could introduce a soft background sound, like a hiss or a soft drone (soft as to not irritate anyone) to make sure different areas of the projection have different, er, sound to them... etc. Maybe you could add a switch or two somewhere that would "open" the cube on one side, so that Juni could escape it, and it'd be a puzzle level then. Maybe you could get some secret passages in, so that Juni could talk to someone living on some side of the cube... and so on.
So yeah, great concept, I just wish it were a full-fledged level working with that concept.