I'd definitely say this is a really good first attempt at game dev!! You really had some awesome ideas implemented into this project and you should definitely be proud of that.
But as all game devs learn, you need to hear the criticism too.
Most the textures were out of place and seemed like strange choices for the context. But hey, it's better then no textures at all!
The crouch feature seemed unnecessary seeing as I never used it through the whole game. The one feature I would have wanted would be a sprint instead of a crouching ability.
I loved the castle used near the end of the game but we never even got to really interact with it! I would have been such a great place for grapple hooking things!
And lastly, I loved that you actually had a tutorial level (Most newer game devs don't do this and should!) and the music in the game was really fitting!!
I hope to see more stuff from you in the future!!