Literally any professional artist giving art advice: “In order to draw a character at a specific size, you need to study real life bodies first. Try drawing the character initially at a normal size, then attempt to add or take off weight if necessary. For instance, a larger character may have a wider waist and thicker legs than a skinny character, which will normally have a more concave abdomen and more separated thighs”
Me, a self-taught artist who never knows what the hell he’s doing: