Spring Harmony

The planetarium event I previously drew a poster for will be held again this spring. (http://otakumode.com/stardustshop/photo/621278833546362880/1?_=1456361279771)

Ursa Major, Ursa Minor, and the Big Dipper are talked about so I tried included them in this piece.
Everyone, have a restful sleep underneath a perfectly starry sky...☆