Hey Matt. The hidden tang knife looks good with pleasing proportions and nice lines, both blade and handle. If I might offer two suggestions....
1. I think I'd make the tang a little longer, as long as possible actually. I try to keep mine about 1/2" or so from the butt of the handle.
2. I know it's just a drawing but I'd advise to make your spine of the blade nice and straight and the clip nice and straight with a deliberate, crisp, sharply defined 'corner' there, if that makes sense. I assume you're going to do that anyway as I said, it's just a drawing. I just wanted to mention it.
Looks great though. Looking forward to seeing it finished up.
Going back, I see one more thing. I'd make sure you're pin is centered in your handle, top to bottom (not end to end), not centered in your tang. It's a hidden tang so as long as the pin goes through it, it doesn't matter if it's not centered in the tang. It should be visually centered in the handle though. Again, maybe you already planned on that and just didn't put it like that on the drawing.