I don't really make cakes much, but it would be really great if one of the enthusiastic and knowledgeable cake makers started a thread and showcased some of the cakes they're most proud of and their secrets.
I can't claim to be an "enthusiastic and knowledgeable cake maker" but I do make my own cakes (and bread when I have the time).
Here's a birthday cake I took in the office for my birthday last year. Unfortunately I didn't think of taking a 'crumb' shot after we had cut it but it was a double chocolate fudge cake with vanilla buttercream filling.
I've been asked to make a similar a few times for people so it couldn't have been too bad.
I can bake but I can't decorate so the chocolate fingers/smarties combo on the sides and top are a great solution and look quite impressive.