Thanks guys. The more I look at it, the more I think it should have been slightly wider across the bottom jaw, but family who have seen it think it is a good likeness.
Scrimper, someone else always does the patterns from me, but I am beginning to feel guilty for keeping pestering him, so I am going to teach myself to make patterns or at least try. I have the software and I know the basics, but I am not sure I have the patience. There's a tutorial at http://patternacademy.blogspot.co.uk/2009/09/we-are-pleased-that-you-have-joined-us.html but it uses Paint Shop Pro which I don't have. I use the free Gimp software.