Hi! I'm seeking for a bit of advice about my roommate's BIRTHDAY CAKE?

She really loves cheesecakes, Nutella and Oreos, so my idea was to make a Nutella cheesecake with an Oreo crumble crust. Since it is a very special occasion though, I'd like to make a SUPER birthday cake... So I was thinking of making a two layer cheesecake, one with the Nutella and one with the Oreo biscuits, but I'm afraid it'd be too much and not tasting so good either. What do you think? Maybe I should stick to the simple Nutella cheesecake and add an Oreo frosting to make it more luxurious?

What do you think?