I've been thinking about this one for a few days.
Individually each component seems really strong. I like the way that bush feels. I like the way the landscape feels. The portal and demon feel like a very strong representation. I love the way the portal feels like a pool, the ripple around his extruding parts.
But I am struggling with a couple things. The bush feels too dark. Too no space heavy for the piece. The remainder of the piece is so bright. It's pulling my attention towards it in every version.
The demon's pose is also problematic in my mind and I find myself focusing on a tail. It is so hunched over coming through there. Obviously much taller than the gate. But how can it maintain that pose. One foot that far forward, it's torso bent towards it's forward knee and the other leg off the ground presumably stepping through. It feels incredibly awkward and unbalanced.
The thicker portal is looking great. I had some thoughts on allowing the portal and demon to feel more separated as it is breaching the boundary.
I made an edit. Sloppily took out the bush. Pulled the leg closer to under his body. (again sloppy) and played around with some portal to demon variations.