You did a great job... to the eagle-eyes here, especially with such sharp-focus close-up shots, the slightest imperfection /texture-difference will be spotted but, in a normal every-day casual situation, with the use of a little product as you say, not an eyelid would be batted twice..... I`ve seen worse full heads of growing hair ! I guess eventually if the sides and back carry on thinning, you`ll reach fullcap territory like myself and other have done, but for now, you`re doing a marvellous job. I wonder would something like a flowbee make your job easier especially the `fade` / stepping-up from the bottom to the longer bits at the top ?
http://www.flowbee.com/info_testimonials.htm
Great pics and well-done.