bluekomadori:

The tutorial of how I achieve watercolor effect in Sai! :) I highly recommend using real watercolor paintings (your own or ones found on the internet) as reference.

And here you can find a few useful links: 

1. You can download the Sai file of this picture here: link 
2. Video process of painting another picture: link
3. The old watercolor tutorial: link
4. Sai brushes (none of them is made by me) link + file you need to open them in Sai: link
5. Awesome watercolor brushes made by Kyle T Webster: link

Here’s the finished painting: link