Pretty cool! It's very daring to take additional challenges for one jam (using only an SNES sounds and the different time signatures for the stages, though you didn't get to fulfill the 2nd one to the fullest), but i'd say you did pretty well!
I like how you set down a groove and then develop on top of it before going to other places, because it gives a very nice structure to the tracks, and it makes the return to the groove oh so satisfying.
I'm personally not always very fond of the SNES quality of sound, but i think you took it and leaned into the sound and it's charm, and made it work pretty well.
Very nice!