I'm pretty sure the kanji in Remi's statement is 姿 and is referring to the shapes on the end of Flan's wings, but I can't make sense of the context.
Flan-chan wants to be in any form, doesn't she?And I do!Chibi Characters (2-4 Head Proportions)Stylish Characters (6-7 Head Propotions)Draw the same characters with different proportions