As you can see in the picture below, I have accidentally ended up with a stain on my current work. This is an assignment for my art course, so pretty frustrating.
I normally work with a separate sheet of paper under my hand, but a tiny drop of water hit the paper and stained it.
I have done a test adding a couple of birds over the stain, as you can see it has reduced the effect, but I'm still getting a shine under light from certain angles. It seems putting it in a plastic pocket, seems to reduce the effect, so for my course submission, I will put it in a plastic pocket.
Are there any good mounting glass that can reduce this effect?
I didn't find the right solution from the internet.