I really like the first attempt. Dense but not garbled.
The Snow Amazon looks much more static to me in the second attempt but Mandy's PC has a better dynamic
I think they are great save the ball and chain. I do not get motion from it, and I think the hand is tight rigid when it should be revolving in a circular motion - some wrist action. How you capture that movement in a snapshot, I do not know. Regardless of my concern your art is evocative and impressive.
The only thing I don't like about this is the positioning of the mountainside vs the two figures. In Adrian's original, the stairs are almost just a suggestion of stairs, but they are there, and they give this dynamic effect of the two figures leaping off of the stairs, caught in midflight.In yours, it's hard for me to figure out what exactly is going on, and my mind gets caught on it. Are they sliding down the mountain? If so, there doesn't seem to be enough of a crumbling outcropping for the morningstar woman to have caught her fall on. Are they falling? If so, why is the shadow so connected to the mountain? A really small change that clarifies what exactly is going on there so my mind can move on to the much more exciting detailing of the figures in battle would help me out.
With the caveat that I don't know anything about anything:The thing that I notice as different between the model and the two derivations is the degree to which the two actors are physically interacting. The demon's hand on the angel's throat and the angel's foot on the demon's thigh clarify their respective positions in space, which in turn helps with interpreting their relative scales and dimensions. The first iteration retains only the foot-thigh point of contact, and the second iteration has no contact at all.