Good detail in the arrowheads, but I think the lighting needs a little work. I'm not very good at lighting myself, but it seems like the left side isn't lit enough and the right side is lit too much.
Good props. Background seems overexposed in the middle, though and detail is lost onthe right hand flint because of some strong reflected light - might have been better with moevement of lighting set up.
Would have been much improved with a darker background and more dramatic lighting - oblique, creating shadows. Looks like you might have used on-camera flash, virtually always the worst way to light a pic.