OK, you found the results...
the really important thing is to not overbake. Dry, Dry, DRY!!!
Also, splitting the layers, brushing with flavored syrup (simple syrup with a liqueur), spreading thick with filling, and then stacking the next layer, is very important. Add some jam. Add some nutella. Slices of strawberries, bananas, or more jam. Whatever you can cram in. The cake is just a conduit for the thick, sweet, thick, rich, and insane. Then when it is all assembled, you cake is a masterpiece.