Audio is half of any film - bad audio will leave an audience disinterested.
Also, better lighting might be good, or at least pump up the brightness in post, maybe put a filter effect on the overall video.
Nice use of sound effects I guess, but the timing of them could be better.
Story wise, you need to work more on establishing characters and their goals. The only way I knew that the main character was after the "artefact" was through the title.
Just a few things to work on.
Your camera skills are pretty good, for a Go Pro at least. Nice angle coverage.
Good luck with improving it all, everyone starts somewhere.
