The House always wins

Here's the plot, I've sent the artist for this commission:

Harley Quinn has taken over "The House" from the villain Roulette/ Veronica Sinclair (who is now unwillingly part of the -possibly deadly - "game").

In case you aren't familiar with that villain, here are some informations from different sources in the internet like wikipedia or dc fandom:
"Roulette is Veronica Sinclair, a super-villain and enemy to the Justice Society. She runs a gambling establishment for super-villains where they can bet on events such as captive superhero death-matches." "Her casino ("The House") is a superhuman gladiatorial arena, capturing heroes with teleporter technology similar to Holt's T-Spheres, and pitting them against each other, while various supervillains bet on the outcome. In her debut, she captured most of the current Justice Society of America and forced them to fight each other."

In the commission there should be a neon sign that reads [The House]. A board under the neon sign reads [Casino Owner: Veronica "Roulette" Sinclair}. Harley Quinn has used a paint spray can to modify that sign to "New Casino Owner: Harley Quinn. The name of Roulette ist sprayed/ painted over, but under the sprayed colour you can still read her name. Sprayed colours have run/spilled a bit. Harley drops the paint spray can down, because she doesn't need her anymore.

The walking characters on the roulette are:

Batman, Roulette, Joker (of course), Punchline, Amanda Waller, The Riddler and Batgirl.

The walking charakers are very unhappy, because being unwillingly part of the (possibly deadly?) "game" - except maybe for the Riddler (he's crazy).