I still remember the outrage when Heath Ledger was presented as the new Joker, and in the end people loved him. So I don't care much about the image... right now many people seem to judge it way too hard. If the movie is good and Jared Leto fits the role this is what counts. It might look a little bit like "we try so hard to be cool", but at least they try something different.
Is this the first image for the movie which was published? If the whole style of the movie is presented this way this might be interesting. I liked "Sin City" for its over the top comic book look. And the dark Batman look has been done a couple of times now. I would love to see a colorful, crazy "Suicide Squad" movie that actually feels like a comic and goes further with this than Marvel.
(...this posting was brought to you by somebody who has not read any DC comic book ever

)