Hello. I just received my very first cake order ever. So this acquaintance of mine wants a RED, BLACK and GOLD heart-shaped cake, with multi-coloured fondant flowers at the top and no fondant anywhere else..

So I thought I'd cover the cake with red buttercream, and put a black fondant bow at the bottom and colour it Gold with some Golden shimmer dust. But, the golden shimmer/dust, everything is out of stock where I live

Now, I really can't make up an image in my mind of a pretty red cake with a pretty black bow and multi-coloured flowers on top. Could anyone please help me about how I could use the colours?

and if I should add another colour, what should it be? Please help me :( Thanks a lot!

The cake is going to be a mango pound cake with mango buttercream. 

AHere's a pretty one for inspiration. http://cakecentral.com/g/i/2266265/red-and-black-heart/u/359893/