2D Animation: Blythe Transformation (Rough animation Part 1)

Rough Animation:

I used the Storyboard as my main key frames, and worked around it. The background is only the draft one, just for composition. 

Her first half of her rough animation before she is transformed. I have her fading out because the shadows will be covering her at those parts. Her outstretched hand will turn into the beasts hand. 

Here is a rough look at the movement of the shadow demons, they are moving quite fast and quickly engulf her. On the left I tried to slow down one of the demons and round off his head to show his jagged smile. But now I'm thinking that it may be too distracting and unnecessary. I want the focus to be Blythe so I might just keep them as black eel-like things. 

This them combined. I haven't yet done the actual transformation into the beast yet. I need to put more focus into her hand which shows how the transformation works. But I'm still working out how to make it disappear, because the hands don't show in the last scene when she is a beast. I thought about it maybe dropping fast, or being covered by more shadows.