Are you talking about the studio renders? The basic renders are getting an overhaul to make them look more natural.
It depends on how your clearcoat is finished. I'd play around with the gloss settings (see pic) to get the closest look to what you are doing.

Hey Koi,
You cant change the background at the moment sorry. We do have a lot more background options coming next month.

There's not a setting for an angled stripe at the moment. If you have a graphics program such as photoshop or gimp you could download a custom layer and add it there. There's a tutorial on custom layers here - https://pocketquiver.com/manufacturer/tutorials/custom-layers.html Otherwise you could upl...

Lets see what designs you have made in PocketQuiver!
I'll get things started - How about this for an 80's throwback?