What art supplies (paint, colored pencil, watercolor) would most look like this style? (link inside)?

Here is a link to show what style I am talking about


http://www.youtube.com/watch?v=Aufw3M4P1鈥?/a>What art supplies (paint, colored pencil, watercolor) would most look like this style? (link inside)?
The backgrounds are probably watercolor; Little Bear %26amp; Co are probably colored digitally. What art supplies (paint, colored pencil, watercolor) would most look like this style? (link inside)?
which part. The Backgrounds looks likes pencil and color wash( regular paint deluted). The anime is lai over the top. Basic drawing wiyh color fill.
Looks like watercolor to me.