The loop isn't that smooth, and you kinda spam the snare, especially at :01. It's way too short to get any sense of progression, and personally I question the musical appeal of a loop this short. At the very least, I'd suggest making sure the loop occurs at the end of a measure. That usually makes it sound smoother. It could also be that you don't have the file settings on "wrap remainder," which will appear when you export it. Keep at it, man!