You've made a lot for a semester so well done.

For a showreel though you might want to be a bit more selective, it should contain only your best work and when you're starting out no one expects you to have lots of cool looking stuff, so better to think simple. If you focus on one or two scenes as well you can spend much more time on getting them to look really good, instead of ending up with lots of things that doesn't look as good as you could make it if you spent the extra time.

Also your reel is confusing to me, I don't get what I'm looking at. Is it a generalist or an animation reel? Because if it's an animation reel those model turntables in the beginning shouldn't be there.And unless you did absolutely everything in that reel like rigged and modeled the characters you need a shot breakdown of what you did. If you did the rigging too I'd still add an intro screen where i made it clear that I did everything in this reel from modeling to animation just so it's clear to someone watching.

Cheers,
Nilla