All these sets look like they are going to play so nice together.
One thing I would suggest for any future sampler swaps is in addition to putting your name on the blocks that you put the name of the block on them also. That would be great for newbies to help learn to identify blocks new to them. I got so many great blocks that I might want to make in the future but I would have a terrible time trying to find the directions to make them without knowing the name.
I'm just having the best time playing with my blocks!
:D