Emma wished to go to work directly, and therefore produced the portfolio containing her various attempts at portraits, for not one of them had ever been finished, that they might decide together on the best size for Harriet. Her many beginnings were displayed. Miniatures, half-lengths, whole-lengths, pencil, crayon, and water-colours had been all tried in turn. She had always wanted to do everything, and had made more progress both in drawing and music than many might have done with so little labour as she would ever submit to. She played and sang; -- and drew in almost every style; but steadiness had always been wanting; and in nothing had she approached the degree of excellence which she would have been glad to command, and ought not to have failed of.
IIRC, Emma has a great deal of natural talent in art and music, but lacks the self discipline to practice (kind of like someone else we know!)