Thanks for the extensive review!
I noticed that many people have a problem with finding a way out of this underground, I will try to fix it in the future updates.
1) Implementing animations of sword swings are easy to do, complete combat system with complex AI is a bit more complicated and, to be honest, it is possible that the topic has surpassed us, so non-combat exploration mode can be the only one ;)
2) Character model is a free model of space pirate from mixamo.com with only changed textures and hairs, I am not a character artist, and I don't know anyone who can help, so I can't promise anything in this topic.
Thanks for playing!