If you don't think it's worth that much, nobody else will either.
Don't even try to figure the price using the time and materials method. What are you going to do when you get better and faster? Charge less, or raise your hourly rate?
Put a number on that puppy that you feel like you got paid what the knife is worth, not what you think you are worth (if that makes any sense)
At some point, you will finish a knife like that in less than 10 hours (forged) and around 5 hours (stock removal). Not counting heat treating or glue setting time, just plain old hands on time.
Charge what the market will pay. Handmade knives like that go for $250-$300 all day long.
Without seeing it in my hand, it's difficult to say. Things that stand out for me are:
1. I really don't know what the intended use is. It doesn't look like some thing that I can say it's a (insert specific type here) knife. Is it a kitchen knife? A camp cutter? a hunter/skinner? The width to length ratio/proportions are off to me. It looks like the blade should be longer for the width or narrower for the length.
2. You only show one side of the handle. What's the other side look like? Are the pins in the same location on both sides?
3. What are the stats? (length, width, thickness, wood species, blade steel, etc.)
4. The upcurve and dropped point don't "look" right to me. The upcurve looks too abrupt and the drop looks too severe.
5. I like a tapered tang on full tang handles. Even a very mild taper looks better than none.
6. The heel of the handle is not symmetrical.
7. It's difficult to tell because your fingers are in the way, but is the center swell in the handle also symmetrical?
8. The front pin isn't centered top to bottom. It looks a little low. (most people won't see this)
9. The space between the front pin and the handle front edge doesn't match the rear pin to the rear edge. It's really close, and most people won't see it, but I do.
All that being said, I think the folks that want this knife, want it because they like it, and I think you should take full advantage of that and make some more of them.