It sounds nice and clean, every element of the track is hearable and balanced out. Now it might just me my generally weird taste but I absolutely loved that pitch drop at 1:34, I would be interested if you done a whole track with the pitch lowered with some heavier elements incorporated :)
It's hard to place the emotional content of this song, but I definitely don't feel that it's depressed or lonely. The bells/music box/chimey thing has a sort of going to bed alone feel to it, but when the rest of the instruments come in it's entirely too lively for that. There wasn't anything horrible about the song, it just feels a little scattered. I think you could split it into two halves and build two entirely new songs on those halves. As far as the audio quality itself and the tunes behind it are concerned, I think it's good overall.
As per your description; A "lonely" feeling is not really what I sense here. It seems a bit heavy when the piano and the bass line comes in, and it might be a little abrupt. It may be your choice in instruments and the way you texture them, more specifically the piano. MIDI or synthesized piano can be a bit harsh especially when you leave the velocity alone and let it stay at one velocity for each note. The square feel of the groove here does help make sense of it though. 0:37 is a nice phrase, but as the phrase draws to a close it gets a bit thick when you add in the previous instruments (and the same parts for that matter). The automation with the speed is really cool and starts to create something totally new, right at the end I do start to see how it could seem "lonely" as you described. Now, just throwing out ideas here; it would be cool to arrange a whole section of this track based on what the ending sounds like. Basically you'd be further developing it into a development section and then maybe somehow going back to the ideas from the beginning. The harmony overall is very interesting. I'm reminded of many minimalist pieces, but this is sometimes what some younger producers end up doing unintentionally when they create tracks that are loop-based or heavily reliant on recycling short phrases. Don't know if it was intentional in your case, but it does have that vibe. The instruments were rocking out a little too hard at times, considering your beat was a little more mellow, laid back and chilled out. I think if you spent a little more time with refining some of your instrument choices and take notice in the overall texture you create, it would really help portray the expressive ideas you really want to evoke onto your listeners. Enjoyed it :]
this is cute. nice song. keep up the awesome