I don't know whether the whole point was to use one drum pattern, but I would've liked if you changed the pattern at appropriate moments to make the song sound less "long".
The only problem I noticed is minor:
The synth that gets introduced in 01:45 doesn't fit that well in the section 01:45~01:51. Try reusing the up and down pattern that's used right after the section.
Keep up the good work!