After all these movies, unless they choose umm Superman returns colors, the color red and blues they use for the actual suits are fine. This gives them far more control on set with lighting and post. They will never use the blue and red of the comics because COMICS CAN CHEAT!
They can cheat lighting so that red and blue are much brighter then they should be in say a tunnel and maintain the same shade when the heroes is out and about on a great sunny day. Also unless they go for Alex Ross detail, must colorist aren't using a wide range of shading when in reality you would get 10 or 20 shade of blue and red because the human body curves and scrunches up.
The first suit had a lot of things going against it production wise that I think they realized Raimi didn't have to deal with. One is the crotch. The other is the muscle shading. They didn't need to go as deep on it as they did with the first suit. My guess is raised webbing is better for lighting and also it sorta fills out Garfield. He was like a salamander in the first film and now he's got some texture to him.
Now there are things I wish they had kept because it was really working for the suit. The hands and forearm were awesome on the other suit. It just flowed with the movement. I would have love to see it incorporated into the belt and legs. Though I have a feeling that it wouldn't have worked with the big white eyes(would have with the old eyes).
Also don't over analyze that trailer frame. It's a low definition frame while in movement.