I thought I'd give it a go as I have the time, and I really need to get some practice in before school starts again.
This is made with a nut marangue (hazelnut and almond), two types of butter cream (vanilla and a praline) and a ganache layer. It wasn't too hard to assemble, although the cream made it difficult to cut, but I froze it and that allowed me to trim the sides.
I attempted to make some caramel hazelnuts to go on top. However, the caramel thickened too fast, so they weren't brilliantly successful. But they look alright.