Hatsune Miku at the Beach

Got a free period in school because I finished my work early, and drew this without reference XD
40 Minutes to draw, 2 hours to shade (Did it at night) o.o
First time drawing a background after a few years (I started drawing manga style in 2011 December, and the last background I drew was about 6 years back I think? And it was very empty and awkward =.
Only used pencil and eraser, not edited with photo editors.