Wow!
I am totally and completely blown away! So much so that I feel I must write a review and give it 10/10! On top of my 5! And I don't write reviews for nothing.
Firstly I LOVE abstract, weird and wonderful work, and THIS had loads of it! It shows originality and ingenuity, as well as the interesting creative characteristic side of yourself. From the very beginning - even without speech/dialogue or subtitles - I knew what was going on. I understood what was happening. I would expect most people to understand it too unless they are without imagination & creativity. (I won't bother recounting the story in my review - people can see for themselves)
The music fit in with the animation very well, contributing to my understanding of the animation and just the general quality of it all. Although at one stage near the beginning, the music was a little irritating (an annoying beeping) but it passed just a couple of seconds after I heard it. I think Alexander did a good job and it was a good idea to have it custom-made to your animation (another unique aspect of this)!
The animation itself, was smooth and flowing, the timing perfect. The colour! Wow: it was so dark! And yet so bright... (I shall explain myself). I think almost every scene had a grey or black part of background, but it was not the kind of grey, flat, depressing dark which I so often see on Newgrounds. The darkness portrayed emotion and depth of atmosphere. The thing that strikes me most is how the darkness brought out so much colour! The colours of the forest contrasted with the darkness added a whole lot more feeling. They were so vivid - I could easily picture the place in my head, and this also helps the viewer understand the place, because they can picture it in their minds, as if they were there - in touch with the scenery.
I've no idea whether you came up with the storyline yourself or whether you got it from some other source of inspiration, but it was a very original piece of work. Quite sci-fi too, futuristic, but not to the point that it was akin to anything else I've seen. It is one of a kind. So, great storyline!
To sum it up, I'd say: very enjoyable, simple and easy to follow, it's fresh, and basically, it is a masterpiece work. Well done. We can see a LOT of time, effort and care was put into this and I, for one, appreciate that. You can definitely be proud of yourself.