Found my stylus so tried using it on a dotted drawing I did a while ago in ArtRage oils. ArtRage has a metallic slider scale so you can make your drawing look metallic and as it says in the name also has pens that look like oil paint. ArtRage oils is a free app. I actually bought ArtRage which is the full app and it has lots more pens and tools, but I keep forgetting it because its on my tablet, and that’s in a cupboard. Oops! Must get it out and charge it!