These are all good photographs. Be careful getting too close with a normal lens, it tends to distort the features. Most beautiful women don't care for that. As said above experiment with a reflector it's more natural than a fill flash and easier to see what your getting unless your shooting polaroids (fuji). Getting a polaroid back and doing that can be very helpful before putting it on film. Back in the day polaroid was your friend but it does add to the expense, no reshoots especially with models :-) Keep shooting it looks great.