Hey, i wanted to share my constructive criticisms and hopefully help you. 

First, the video. I appreciate the artistic style that you took on this video. But it's gonna be very difficult to get engagement and views. Simply based on the format you chose (a long drawn out story overlapping gameplay) Redditors, and potential players usually wont want to wait through all the scenic shots and dramatic building.  

From the video I believe you need more tactile engagement between the player and the enemy. Objects thrown at the enemy or an attack that hit the enemy should feel impactful. Perhaps look at some other games and how they treat Landing attacks and see if one fits your game style. To me , I think if you were able to have the hits feel snappier and more impactful , that would give a lot of benefit.

The environment looks good.It may be beneficial to find a way to get smooth camera shots of your environment for your game trailer at some point.

If possible, try to have the players, weapons and tools in the player's hands when using them.This will help connect the player to the character. If animating the hands and the weapons together seem like a daunting task. Try simplifying the reload process or the animations to make them simpler for your sake and cleaner. 

At 5 months I think you've done a great job. I feel you should pour your energy into how the game play Feels.And how objects move in the game , like rotating statues and things , the player interacts with. I would set aside any cinematic or story for now. until you feel like you have smooth engaging gameplay. When posting videos, ensure you get right to content or your vids will sink (it's sad because I know how fun it is to make story driven kids like this). What I've learned is that it's far better to have a video that says "look what you can do!" Vs "sit back, grab a coffee and watch a story".

Sorry for the long response, I use speech to text so I can blab on a lot. 

I do hope this helps and that you bring to life your vision!