I'd recommend it to be more wispy and having it a darker color scheme. I noticed that the fawn's (Or is that a female?), legs are detached. So why not try adding some ghost theme's onto the drawing? This sketch was very pleasant to scan through and it was very solid BTW.
Put her in a soft pink, green, and yellow flower patch with cherry blossom trees letting their leaves fly away to make a lovely background. possibly give her a flowercrown that matches the cherry blossom tree!