You finally did it man, nice collab!
I watched all the parts and i think that in general it is a good collab however i don't understand why you put part 1 and part 2 on youtube instead of including them in the flash... Anyway i expecially liked some moments - the blue geometric castle was really cool and frame by frame parts were cool too. And i've also seen some moments from compound eye in the 2 part.
Good collab again, keep it up and keep working!