Oh, well. I have tried open Canvas. It's nice, but I also love SAI. <3 SAI is a Japanese software very, very similar to Open Canvas, but free. Also very new; still in beta, if I am right. Someone was kind enough to translate it. I have a copy. It has its issues, like only saving in BMP, PSD and SAI. So I have to move it over to other software if I want to save it as JPEG, GIF, PNG or any other. Not so many tools, either.
However, I love the lines I get. The latest sketches are all done with it.
It would be nice to try OC again. I never considered it because it's not free, and I can't afford it at this time.
Thank you very much for your words! ;_; <3