Shadow placement

[hybrid raptor]

I need help with the shadows. Imagine there's like a small light coming from bakugoes hand. Like a spark. How should the shadows go?

[midnight plinth]

Im not very good at colors but I think bounce light really can make a painting, the things on the wide of his head are white and reflective, right? You could make the fire reflect off parts of the body onto on another especially the reflective parts, in other words:
Tip: bounce light
-# also it looks good so far :)

[hoary silo]

I'm not really sure but how about you lasso the whole thing and curve rgb up to make it darker and thhen just use lighter color to determined where the light and not the shadow because with sparks is gonna overwhelm your frontal lobe and leave you critical with no lobotomization