4) Black Panther
Concept art of Black Panther was well-received, but Captain America: Civil War set photos had fans fretting. The costume did not look very good, and many people started worrying that Marvel Studios had dropped the ball when it came to T’Challa’s appearance. Thankfully, some CG enhancements ensured that Black Panther ended up looking great in live-action, and he would eventually go on to steal the show as far as costumes go.
[zergpaid]His comic book counterpart’s appearance is actually quite bland in comparison, so the decision to enhance it with a Vibranium weave definitely paid off, as did the general design (the helmet in particular was much better than it otherwise might have been). When Black Panther rolls around in 2018, we’re hoping that there have been no changes made to his suit whatsoever.