On December 13, 2012, Aqua Bunny lasted a whole six years. And... my God, when was the last time I drew basic Nidos? Did I even do any regular Nido pics this year? That might be a problem.
What style is this, anyway? It's unique to these anniversary pics, that's a given. Chibi-Chibi really means a chibi of a chibi, so maybe this is just 'Chibi'. But then again, these aren't actually super deformed, and Chibi-Chibis are more of a derivative of Riri et. al.'s design. Maybe this should be called softened style.