I’m trying to create some basic pixel-art propaganda flyers for a book.
I create the original version in Inkscape as an SVG, then export it to Krita, where I use the brush tool to add effects, like scratches, singed edges, and blood (please try to ignore the cringeworthy text - it’s embarrassing to me too, but it works for the setting):

Although I believe that this paper flyer looks like it’s paper, the undermentioned propaganda poster

doesn’t appear as worn as its edges would demonstrate. I don’t want it to look like paper - it should appear to be painted atop metal - but it should certainly have a little more deformation than its currently perfect front depicts.
How can I achieve this? I can think of applying a noise map for slightly crumpled paper (although I don’t know how to do that either) but I can’t think of what to do to make it look like a dented, rigid panel.
By the way, if any of you can think of a way to make it look really good which relies upon the poster being paper, I’ll remove the scratches and apply that - I don’t particularly mind. I just want it to look realistic, ultimately.
I do also intend to create some more interesting content, rather than limit myself to mere text. However, I’m not even at the stage where I can ascertain how to render to a low resolution (like this demonstrates) due to a myriad of issues with Blender, like:
This is my first attempt at creating digital artwork, so I apologize for my ineptitude. You’ll probably be seeing more of me here as time progresses.
