SAI Speedpainting One Layer Challenge (fail )

A challenge from my friend on rl :) One layer painting :D Put your challenge guys Send the massage to me :D The character is belong to me. . ) The song is called Yume mite mo ii jana i or Can t I even dream from vocaloid song. Time : about 3hr 40m. Tool : Paint Tool SAI, wacom bamboo tablet pen touch small br, br,