"The End" - Music Project - Thoughts?

[Bridge]

Sounds good, would make great ending credit music for a survival horror/adventure game with a protagonist-heavy story. The tempo (is that the correct musical term for 'pace'?) seems a little disjointed though; sort of speeds up & slows down irregularly.

Tempo is the correct term. The term for "speeding up and slowing down irregularly" is rubato. Basically it means no strict adherence to any one tempo and freedom of rhythm. But this piece isn't very free at all, in fact I'm sure the disjointedness was a mistake in the performance, apart from the slight slow down near the end of the phrases.

Yes.
In all the previews I've uploaded of pieces I'm working on, there might be a bit tempo changing.

It's basically because they're played "live" and isn't placed totally correct.
This will be fixed in the final versions of the piece(s).

Why are you even releasing "demo versions" of your pieces? It's not like you have millions of fans anxiously awaiting updates every second of the day… Just finish them and then release them.