hii !! tysm for the chance hope this isnt too late, ill put a few options for u to choose from bellow 

this is baby pub, theyre an age regresssion sona with a pastelcorre aesthetic, their main color pallete is purple, yellow and pink ! they normally only wear comfy clothes (hardly wears skirts, puffy pants, or diapers if ur comfy with it, are the way to go !) u can do anything aslong as u do not draw anything suggestive 

this is lovette, his clothes are mainly yellow pink and brown, they wear very feminine frilly clothes, will rock about any pastel look you put her on, but examples are in her profile :>

this is mel ! a cottacore lovin bunny that mainly wears cute but formal outfits, however she does have a spring picnic outfit (u can find it in the images), her main outfit colors are a purpleish grey, white, desaturated purples, pinks, and maybe green accents ! 

im very sorry i cant really give you many irl outfit examples, bc most of the clothes i design myself, again tysm for the opportunity hope this isnt too late <3