Dude, that paint job on the Sphinx is just great. I also use Krylon spray paints for a lot of my base coating. I used Ivory for my Deathwing vehicles, Burgundy for my Spears of Ares Space Marines, Red Pepper for my Khorne Berserkers and Khaki for my Imperial Guard; some of that stuff is visible in
my Gallery here on Dakka. It's a great way to speed up the painting process and save some money at the same time as it is not only fast, but very cost effective.