The fades are too thick too fast. Rule of thumb I try to keep is 0 to .250 back three inches. everything has to be smooth or you get those hollow spots. I have had some when I first start working a new design. You do eventually catch these things and do it less but it happens. That is such a pretty bow too,. I really hate it being trash canned. You could possibly drill through the sight window. run a long screw in with smooth on in the hole and along with the super glue it would hold and make you a shooter,. you could put an overlay over the screw and only you would ever know it was there. Wrap a good leather grip on the grip and glue it on. I would never sell it though.
the voids under the glass can be helped by taking a very tiny drill and drilling a hole through the glass in the center of the void. Then inject Gorilla impact resistant super glue in and clamp and let up and clamp and let up until the void disappears. Then clamp tight and let dry. The drill hole is filled with smooth on and when finished it disappears.
God bless you, Steve