My first play through was with the knight. I'd add something else for the knight to do or decrease the attack timer (just one of them, maybe like a quick attack). It felt a tad waity with just a shield.
However, I do love the concept, and I believe it has potential if you would want to expand. Also, I did NOT expect the voice acting to be THIS good (common for indie games); i was absolutely swept by the talent.
But ye, just my humble opinion. Overall, butter smooth and fun to play: 10/10 Hope to see more projects of yours!