I think that's totally honorable to submit a game even when things didn't work out. Congrats for not giving up and having the maturity to face head on the mistakes you made, thanks to that, i' m pretty sure in the future you will be able to use the things you learned here to make an awesome project!
Just some things to keep in mind: the footsteps sfx used here don't really translates the sound the character appear to make, they feel way too heavy. Also, it's a good thing to make them more random(change pitch for example), so they don't feel so monotone.
On the graphics side of the things lies what I think is your biggest strength, even on this so called "not game" you still managed to make lots of models, particles and stuff, which is pretty amazing. One thing to take note is to learn how to better make use of the lightning along the scene, some places were just too dark! (and of course give the models proper collisions btw). The UI can be much better than it is now, not that it's not visually appealing, they simply don't do their sole purpose, that is to inform the player and give feedback for his actions(I honestly couldn't understand what the symbols were meant to say).
Aside from that, remember to always make sure you have a minimum viable product, a working prototype, before jumping on to super complex ideas and stuff, just cause it sounds like a good idea doesn't mean it's a viable one. First make sure you can make the main mechanic work, then you can add other things.
Again, congrats for the courage and good luck on your future projects! :D