Continued Oil Leak

I am not 100% percent sure if the oil is leaking from the just the Valve Covers alone. It is possible that its also leaking from the back of the intake manifold, but I am hoping its not. Something that put a frown on my face is the back valve cover bolt is only accessible from reaching in between the firewall and motor which makes me wonder why those goofy wing-nut bolts were used. However there is plenty of room to work....so far.