Nice artist this Obata Yayoi, also goes by the name "Yayoi Fantasy Zone". Does a lot of good colorful shotacon. Small collection of their art I could find:
BEWARE tho, all of their work includes cross dressing and even some shamale, so if you don't like that STAY AWAY
Boys are always very effeminate in their works so if that rubs you the wrong way I don't blame ya
Finally something good in here.