I create most of my illustrations in Clip Studio Paint. Of course Photoshop is also indispensable, but most of the drawings I create in Clip Studio paint. I find it faster and more immediate. Over the years, I've bought some brush sets that have gone into my daily work. There are many very good brushes, but I was always a little jealous of the crosshatch brushes in Photoshop. That's why I started to develop my own brushes for Clip Studio Paint.