Definitely an improvement, exagerations considered. Best 5th gen rendering I've seen to date.
I'd be interested to see what it would look like if the front section from rear of the doors to the lower edge of the front bumper was compressed about 1.5". That might give a little more rake rear to front and enlarge the side and front glass a little. The lower front air intake and brake ducts would be reduced in scale and the side line lowered. The rear fender duct could be dropped the same amount and the rocker dimension compressed slightly. The outer lower corners of the front headlight openings could be dropped slightly to blend the frontal lines and give it a little more of the traditional 1st gen grille apperance.
Does that make sense?
The 5th has a lot of potential but nobody has nailed it. I'll use the Mustang as an example as much as that hurts to say.