I like the synth bass arpeggios at the beginning and the organ synth at :08. They occupy a very similar frequency range, though - might help make each one sound more distinct if you moved one of them up an octave. That would also help balance out what was a pretty bottom-heavy texture until that point. Still, I like the guitar melodies at :53 and the walking bass line. The drums could use a bit of a boost in the mix - I’d suggest some more compression. In fact, the mix is a bit quiet on the piece in general, so maybe that compressor should go on the master track. Just be careful that you don’t compress it so much that the entire mix sounds artificial.
After :53, much of the first half of the piece is pretty repetitive. Especially since the overall track is so long, it might benefit from some more structural changes in the texture - stripping the beat away entirely, switching up which instruments are playing the melody, etc. I like how the guitar gradually climbs into its upper register by 2:45, even though it took a pretty long and meandering path to get there. The spacey atmosphere at 3:14 was a good way of wrapping up the first melodic section before the re-introduction of the bass a few seconds later.
I think the brass at 4:00 in particular could use a bit of a boost in the mix, and also the instrument sounds a tad inauthentic. I also would’ve liked to see you shake up the melodic section the second time around at 4:20 - it seems to be copy-pasted from the first half of the piece. The final tonic note at 6:43 is a nice touch, though.
Overall, the sound design and composition of the piece are enjoyable, and it’s especially nice to see such a dynamic main melody. The mixing is the main thing that needs tweaking here in my view. You could also stand to have a bit more variety during the long melodic sections, but it might serve you just as well to loop the piece off at 3:20 instead of just repeating everything again. Neat track, DonDonPan! Keep it up. ^_^
Mixing, mastering, and balance
1.25/2
Structure, transitions, phrasing, and variety
1/1.5
Melody, tonality, harmony, and texture
1.75/2
Instrumentation and sound design
.75/1
Emotion, atmosphere, and catchiness
1.25/1.5
Originality and uniqueness
.75/1
Overall (how do the elements above interact?)
1/1
Composite score
7.75/10