As a kid he was this ugly little critter with eyes bulging out of his balding grey head, so he got a second skin to hide his insecurities. His coarse hair pushed against the head of his mask as a kid and thats why the masks hair looks all lumpy and abnormal. As he grew up his head eventually outgrew his baby mask leading to it ripping at the top and falling over his face. His eyes were already white with cataracts so he was already blind basically, so as he grew up eventually his skin kinda healed over where his eyes used to be. His eyelid skin is lower on his head and under his mask. And since hes so old naturally his hair fell out making him this sad blind old man. I thought in theory both faces couldve been kid roger, the mask looking one since he has a portrait variant with the yellow frilled dress similar to the ones the baby chefs are seen wearing in their portrait. The yellow frilled dresses are worn by baby maw employees or something. The grey one also i thought couldve been him since grey skin like rogers skull, white seemingly blind eyes, big forehead and a similar jacket. I couldnt decide who fit more so what the hell i decided both could be. I might make a story for baby roger and him growing up and stuff using these designs but well have to see