Well, when I start enter academy, I never see people use 150x300 avatar style until after I practice very long time. It start become popular (I means starting, there are still many people use old style avatar = =) And it must be continue practice until 150x300 style avatar replace the old avatar style !!! Start making one and add it to your avatar xD
IT IS 150x300 avatar style ERA. What shud i call it instead of 150x300 = =? Maybe rectangle avatar xD