Feels like the beginning of something that could be pretty great, but it's really a one-off, one-joke piece, so in my personal opinion that joke should come much faster because it takes a little long to get there. Plus I feel like I'm seeing Spock get his fate for a bit too long.
Nice work on the voices too - not totally professional but captures the spirit - and the ship was pretty cool.
I'd like to see some more movement in the bodies, not just sliding across the screen. Also have you considered expanding this out, getting the crew to find Spock and go to battle with this monster? You could have a lot of fun and jokes with that. Also I believe it would be more engaging because now you have conflict and a story, and the viewer is going to want to know who wins.
Anyway, good work overall and would love to see what happens with an episode like this when it's really played out more fully.