Berserk Shirt

[latent hazel]

Hello, I am currently doing a T-Shirt design (for personal use I'm not planning on selling) of the Behelit from Berserk. I'm not a designer and this is my first time doing anything like this. I would love some feedback specially regarding shadows (shape and colour).

Possible designs:

(The shadow changes a bit)

these aren't final so any feedback is appreciated