Paper Texture Brushes
Instead of ready canvas, you can apply paper texture for your art at the end of process.
Suggest add 2 layer at very top of your creation.
- 1st layer with "Dark color" mode.
- 2nd layer with "overlay" mode.
brush both layer with same texture, so that you can do adjustment on 2 layer texture separately, 1 for paper and 2nd overlay on your art.