Lisa just taught Maggie how to play her guitar. Now Maggie is playing the guitar as a pro.
Lisa's guitar is from the "Last Exit to Springfield"(Season 4) episode.
Also the background is supposed to be the same place where Lisa & Maggie spotted the rainbow from one of my past drawings: [link]
Hope you like it!^^
Lisa and Maggie/Simpsons are created Matt Groening/20th Century Fox
Artwork Sketch done on paper and Artwork Coloring & outlines done on Colors 3D in my 3DS