Delicious Wedding Cake

I finished the wedding cake just in time for the presentation. I have to admit, decoration a cake is really hard, specially if you don't have the right tools. I had to improvise a tool to smooth out the icing and the tip of my piping bag was way too thick. Also, I had no idea what king of design I was making and improvising is not my forte. If anybody knows of a good site to get patterns or decorating ideas, I'd love to see them!
Overall the cake was pretty tasty! My professor had seconds and there was only a little piece left at the end of class.
The sponge wasn't as soft and airy as it was when I first made it because I had to put it in the refrigerator after icing for the buttercream to harden. Next time I make a cake like this I am making the whole cake just a day before I need it so the sponge is fresher, and I will most definitely be more prepared for the decorations!!
I took some pictures for you... hope you like them!PS: the piping is supposed to be green but you can't really tell in the pictures!