If you'll ask me, I personally like #51 color combination. Orange and purple really compliment each other and the purple makes a good contrast for the abstract human. #52 is also good which gives multiple meaning, the crown at this point can also be a sun, it's like reaching for a very big goal. If you are having a hard time deciding of which color you like best, I can send all color variations to you since they are all in the same concept, so no problem there. Anyway, please let me know if there are more revisions you wish to see.
Regards,
PG