Managed to beat Avarice, Sloth and Lust. All of those bosses aren’t spectacular, but are fine. Avarice jumps between columns and tries to hit you with a bathtub.
Sloth is held by a lot of crabs, then is fought like any “dragon” from Dark Souls.
Lust is your typical “fencer”, but summons a hammer-wielding angel once his health gets low.
The Kraken mini-boss was super-annoying, though. You’re told to hit the eyes, but when you hit them, nothing happens. Turns out you need to use esoteric autoaim mechanic to hit them all at once. Don’t base your bossed on mechanic you never explained properly.