* This is an official 2017 NGUAC review *
This one has some great potential, I just feel like it missed the mark in some key areas. On to specifics...
Mixing, mastering and production: Overall, the production is not too bad. But it suffers from preset-itis. That is to say, when I'm listening to Meditation I can hear that most, if not all, of the instruments are presets plunked into the project. They're very basic and generic sounds - a piano, a kick drum, a lead saw, etc. and while that's not inherently bad, there's not a lot of originality to them. When you use mostly presets, it's hard for me to assess your production skills, because there's not much of YOUR production going on - it's the production of whatever presets are available in the software you're using.
There's a few ways to fix this. Make sure to carefully EQ and reverb all of your instrument tracks so that they sound unique to you and to that specific song. Ideally, you want things to sound like all the instruments are playing together in the same room. A big aid to realism is also to edit velocity. Velocity is especially noticeable on certain instruments like the piano - when a pianist plays a piece, not every single note is pressed with the exact same amount of force. So when I hear that in your track, I know it's fake, regardless of how 'good' it sounds.
Finally I would say make sure to look into mastering a bit. Overall the mix was a bit muted and muddy - good EQing and use of a multiband compressor in the mastering stage will really help your music to shine.
Composition: Really good ideas. I'm a big fan of the chords and their progression.
My main sticking point here was the length. A long track is not necessarily a bad thing, but every single second of a track has to have original, innate worth, or what's the point? There's not a whole lot of progression in Meditation, and to listen to not tons of progression for six and a half minutes can get boring. Try having some distinct sections; add a bunch of instruments for one section and take them out the next. Dynamic variety can be a great tool.
The piano is a great melodic instrument and you had some piano melodies going on, but I wasn't particularly wowed by them. The piano/synth combo worked better, and I think you have good ideas regarding melodies, they just need some work.
Hope all this helps! Keep on composing.