believe or not, the mixing wasn't half bad. just a lack of bass in general.
i don't know if u noticed, but at 1:50 your hihats started a bar late after that section.
the melodies are fine, the arrangement could use more work.just adding stuff on top of each other every 8 bars won't do much. mess around with automation, filters, fx, etc... make the background interesting enough so that the transitions are very smooth-like.
yeh thats about it for this one