You could put a protective foil on them, I don't know things too well though. But lamination might be an idea? Since it can endure great heat anyways as you have to bake them.
In other news, I am pretty lost. I wanted to finish an old collab I have with Zang, and since this thing originally happened sometime last year after me and princess brothel had a talk with each other about color, I decided to use a limited color palette. Pulling this out again, I decided to try out a monochromatic palette instead, which would look something like this

However, there was a layer from my first idea drafting, and I still liked that one. I decided to shade it just to see how it looks, and to be quite honest I like it a lot more

I know there is a lot going on, but it just feels so much better to me. Its not like I can't see that people might percieve it as clashing or too saturated, but dammit I just love using colors.
My problem isn't related only to this drawing now, I'm feeling torn and worried lately in general. I don't know if I should just keep doing what I love and is the most fun to me, or if I'm as delusional as a 16 year old with their Sonic OCs on deviantArt and actually quite shite and should re-take my artist driver's permit before I end up on Rainbow Road in Mario Kart.