If 4 had some of the fresh-faced charm of 7, I think that could be a nice fit - at the moment, 4 looks so unhappy, but there's something about the head/hat proportion that I like.
Thank you for the feedback, I have now uploaded No.4 with a new face (more like No.7's) -http://ruthcann.blogspot.co.uk/2017/02/magicians-grandson-development.html
Yeah number 4 looks very appealing! I also like number 5, he looks like a son of a superhero.👍👍👍
Thank you! I have now developed No.4 :)