yeah there is alot of open space in this sig it feels like there are two lighting directions,
perhaps some more lighting effects to follow the lighting of the render (from the top right)

I do like the style, but it seems like many people are following a similar effect nowadays, with Central renders,
C4d Backgrounds, clipping mask, vector brushes and smudging towards the foreground. It's not bad but it is very common.
Plus i like this style to tell you the truth.

7/10