Recently I received the 6913 set. Once I unpacked it and put the parts in front of me, I was disappointed. Many plates, some bricks and all different colors.
In my sorrow I put together the main model. ;o)
A few days later I put together the B model. I liked these two very much, but I did not like the C model so much.
The third model I put together a week later. Finally, I got to like it. I also built the first alternative model D.
This is an oldtimer: