Tom,
Just basics, but all the more important to me. Proportion, flow of design, and good fit and finish. Of course other things are involved too, like ergonomics, quality materials, and visual appeal. Some of these appeal to the eye and some to the hand.
After the basics, I like your pin location for this paticular handle construction. I like the spacers to break things up and I like the hardening line, just because you know this knife was made under controlled situation by someone who knew what they were doing. I see that you pushed the choil forward and curving the ricasso bottom allowing the index finger to choke up sometimes. Some customers ask for this.
Lin