Comparing the two fragrances…

Inessance

Nina Ricci
Mademoiselle
Luna Monster
Only in Luna Monster
Shared character
Both Mademoiselle and Luna Monster feature a combination of orange blossom, freesia, caramel, and pineapple. They are both characterized by floral and ambery (oriental) accords.
How they differ
Mademoiselle contains rose, bergamot, patchouli, peach, lily, and strawberry. Luna Monster differs by including woody notes and lime.
Who each suits
Mademoiselle suits those who prefer a profile featuring rose, peach, and patchouli. Luna Monster suits those who prefer a profile featuring lime and woody notes.