Is that the same girl I posted?
I somewhat agree with you, I still find the first one extremely attractive. I just sort of like being able to see all the muscles, a bit of ribs, it's just the shape and form, the curves and contours. However, when that is achieved by just being skinny through diets or just genetics, it doesn't look that great, and furthermore isn't healthy.
I only chose that picture coz it was the first skinny one which wasn't anorexic, even though she looks like she actually exercises to have that body.