From the Artist: I felt happy doing this because your mind needs to more be creative and you have to explore it. I had not imagined that you can use more media in arts. I thought you should use only one media. Thank you so much for this project.
From the Painting Guide: Some mixed media we're so used to we don't even think about it twice, such as black pen and watercolor. The only time you need worry about whether you should be using a single medium would be if you were entering an art competition. Sometimes the rules are very specific about not mixing. But otherwise, there's no Official Art Rule saying you can't; the limiting factor is whether mediums work together or not.
From the Painting Guide: Some mixed media we're so used to we don't even think about it twice, such as black pen and watercolor. The only time you need worry about whether you should be using a single medium would be if you were entering an art competition. Sometimes the rules are very specific about not mixing. But otherwise, there's no Official Art Rule saying you can't; the limiting factor is whether mediums work together or not.