Nice rhythm, my head immediately started bobbing haha. It's a nice playful track all around. If I can offer some constructive feedback: around the 30 second mark when the other instruments drop out and the vibraphone melody takes the focus, I think it could afford to be raised up a bit in the mix as it's slightly lost beneath the guitar chords (at least in my headphones, YMMV). I enjoyed the sine wave with the vibrato, maybe there's room to automate that a little to add some expressiveness? Vary the speed and depth of the vibrato perhaps, just subtly... it sounded fine as is, just an idea to liven it up 🙂 Nice work.