First of all, thanks for the kind words and suggestions! <3
I love the idea of turning spades/swords into revelations. Danger wasn't supposed to be something that obligatory would hurt your explorer, but something they would perceive with fear, anxiety or concern. A revelation is both closer to that and broader in meaning, so that's a very good change.
For the Minor Arcana, I tried my best to follow Rider-Waite themes, yes, but I also tried to keep it as simple as possible for the people unfamiliar with Tarot. I have opted for the simpler approach, but players are more than welcome to use their deck of choice's meanings instead, if that can create a better story!