ART STYLE TUTORIALS, .PSD's and TIPS

Thanks so much!! ; w;

"- You can update your custom decor art with new files for stages or refresh art anytime (it will require an approval as well)! However, if it's a big change to the art, we recommend doing a new rehauled Decor instead of total change of something that players liked enough to buy."

I remember reading this, but I've never been able to find a way to do it? I kinda assumed it was something to be added at a later date.. am I missing something?

Will the PSD be updated with the new Sentinel Pose? 

it is! you just have to re-download it, at least I did and it's in there.

What software do you guys use?

Sorry for randomly commenting but..I have no idea what was used for the fake lines layer effects. I have a very old version of photoshop and I can't figure out how the layering works, haha. Would something like that be possible on clip studio paint?