Beautiful cake, please is there any tutorial? I'm really curious as to how you did the zipper and what you used to make the cake shine or rather sparkle

Thank you much, unfortunately I have not take any photos while doing this cake... perhaps next time... :-)   I just made it according to the real things :-)  The Zipper is from the silicone mould and the sparkle is the snow white, silver sparkle and wine powdery colours.