#33, #32, #31 all playing off the whole meaning of the word "foundry" via the use of the anvil, a classic metal working tool. Tried it with hammers etc also, didn't look nearly half as powerful as the anvil.
#33 playing with the fact that you wanted to get across "creativity" so playing with the standard fonts and making it look a bit more "man made" also emphasizing the metal working concept.
#32 centralizing it, giving it a bit of an obvious balance, and also giving it some parameters with the border.