I'm also curious about what you mean by looking the same.
I agree that genetics limit major changes, even as muscles can alter your shape. For example, I will literally never have long, willowy legs- even my leg bones are thick, & objectively my inseam in shorter than average for a female. But when I stopped lifting heavier weights & doing extreme workout, opting instead for TA & floor- type work, I did alter my silhouette, with my legs appearing longer without disproportionately bigger muscles ( for me, quads), & my waist appearing smaller without as much underlying muscle. My true skeletal frame is more apparent, instead of the muscles that I develop easily ( for me, quads). But if I measure my legs, of course they are the same length, though they give the illusion of being longer.
I've experimented by adding weights & increasing exercises to work the areas that I want to get bigger ( for me, the bum). I limit weights that work the quads, just the bum and hamstrings for me. For abs, I focus on straight-on upward abs, instead of the obliques on the side, as I prefer the look if a cinched waist. I work the pecs to keep the girls
perky. So in brief, I only add weights or use more repetition to the areas I want bigger. This works for me right now because I have a good amount of natural muscle, & I'm working with my natural body shape type ( hourglass).
Just curious, what are your aesthetic goals?
Julie