sorry for the late response! I've been busy lately. I took a look, what's the context behind it? Were you using a pre-written script? Overall I feel like some parts just end up being too slow, but if you have to stick to set dialogue that can obviously be a challenge!
Also, it's really ambitious to have the number of frames that you do. It'd be cool if you could get a little more lipsyncing, so maybe having a different shape for "o" or "oo" sounds, etc. Also, you might want to check your quality settings because when you have the frames with drawn on mouths show up the quality of the image itself suddenly decreases and makes it a little distracting.
Again, I'm not sure exactly what the context behind the film was but I think it runs a little long, too. Maybe you could cut down some moments a little shorter. I know it's hard, especially if you're given dialogue, especially with a medium that lends itself a little better to more body mechanics and less talking. But it's cool that you went through so much effort to make a project like this! nice job