I appreciate what you've done (it's impressive for a short one week thing!) and enjoyed using the bushes strategically, but personally I'm concerned about the shared action pool. I pretty much just had my rapier girl (with a mainly Defense-oriented build) solo stages, occasionally being given +temp HP if there was nothing in sword range. (I played like ~10 stages, stopping when it seemed like I had done the same stage about four times.)
I've played several TRPGs, and in my opinion, a unit that can give another one an additional turn is always a very powerful ability. Now that's essentially the default action any unit can take here. And if we were to compare to Chess, if each player could make two moves in a row, I think moving the same piece twice (especially the Queen) will very often make more sense than moving two different pieces, or at least after the first couple opening turns.
Maybe I could be wrong and it's possible that something else made the game feel easy to me (like possibly the rapier girl or defense being OP, or possibly just me having experience in strategy games), or maybe things will change once each character has more abilities, but yeah, I'm concerned that the best way to play might to be to put all your eggs in one basket.
Still, I like what you're going for!