I think on all the pics you posted, my eye is drawn to the larger open area between the guard/spacer and the first(front) pin(s). In other words, the area between the front of the handle and first pins is much larger than the area between the butt end of the handle and the rear most pins.
I think the eye has a tendency to look at the entire length of the wood or micarta as a whole single piece and is seeking balance.
So in that regard, if the forward-most pins were the same distance from the guard/spacer as the rear-most pins were from the butt of the handle, it would appear more visually balanced.
As it sits, IN MY OPINION, it appears that there is an odd larger space at the front of the handle, then all the other pins are crammed too close together in an off balance space.
If the front most and rear most pins are balanced in the handle, that would than allow you to evenly balance any and all other pins evenly between the front and rear pin groups. If adding two center pins, as you've done, they could then be equally balanced between the front and rear pin groups, which is the other issue my eye is having in the two coffin handled knives.
I'm just lending my perspective. It doesn't necessarily make me right.