Super Orgasm is a slightly shimmery peachy-pink blush with large chunks of glitter. I would prefer this without the glitter chunks, but since they're quite big, they easily fall off so its not really a big thing to worry about. :)
Luster, Silvana and Madly are pretty similar shades of bronze:
Luster is the sheerest of the bunch.
Silvana is the most orange.
Madly is the most bronze.
Here are swatches!
Swatches with heavy fingers: NARS Super Orgasm, Silvana, Luster, Madly
Sheered swatches: NARS Super Orgasm, Silvana, Luster, Madly
I hope this helps.
Do you own any NARS blushes? And if so, which are your favourites?? Let me know, I might try them next~!