It can't be like:
stage 1: tshirt
stage2: tshirt + add pants
stage3: tshirt, still has same pants, add gloves
But it can be:
stage 1: knuffel in tshirt
stage 2: tshirt gets longer, add pants and gloves, small hair change
stage 3: tshirt changes again, pants get longer, gloves puffy/longer/get more details etc
For example, all evolution stages of "human'' knuffel, that was recently approved:
Sarrox.
There are small changes in hair and face, but what's more important all clothes that show up are changing and slowly "evolving" from stage to stage.