1. put the body as skinny as possible.
2. make your height as low as it can go. altmer chicks are already disgustingly tall, so make the best of it.
3. go for the yellowest skin color. (i choose that because as an altmer i want to look like an altmer, too many of the skin color options look too human so go for the most yellow one.)
4. upper body: max out the chest slider, but every other slider put on the smallest (waist, gut, etc),
5. lower body: max out both the posterior dimensions and the hip size. everything else put as small as possible.
that's the formula to all attractive female bodies for practically every race in ESO. GL