Little piece of advice: while posting some shots accompanied with a nice, lit, textured UE4 scene is cool, I really don’t think there’s much appeal or need to post loads of very similar gray shots! Get stuff into a lit and textured scene and then post- without the context the shots you have taken don’t really apply to a forum based on Unreal Engine!
My current hobby project is a Pong remake with a little twist. I recorded me playing a single player game, but it supports multiplayer too (though that needs a little work, but it’s mostly there.)
What happens if you cover the walls and floors with large shiny white tiles that are destructible and reveal the darker surface below? Could look very cool when it collides with the walls and it would leave trails on the ground of chunks get kicked up.
I’d also try raising the controlled bar, float a little off the ground and put a fresnel on the opacity so it’s ghosted.