A bit of work needed
As you may already know, it does seem pretty obvious. The lip-syncing was off by a golden mile. Not once did it match the animation, which I admit looked pretty decent, albeit a few small gripes with the hands playing the guitar and all. The hands themselves and the way they were connected to the body made the guitarist look like he was a puppet of some sort, as was the case with his head turning. With some work you could improve this. The background and room itself looked good, and the music was very clear and the song itself is an excellent song to provide for an animation. So basically you just need to work on your timing and movement (maybe look at the frets for the guitar to see what he's playing so it adds some detail to the animation) and you'll have an excellent animation on your hands.