Hi~ Yes, I am using SAI, But to make the background invisible I use GIMP. Its a free and helpfu software. I think it is possible to make backgrounds invisible with the older version of SAI, but its in japanese
This is such a cute little pose You're so good at drawing braids. I love the shading > O < I wish I could shade the clothes and hair like you can. The face expression is too cute. I love her little hand gesture thing too.