The serrated engine casing is interesting, as is the 'organic' looking wing.
But I wonder how much of that will make it to the actual design? The 787 was similarly illustrated a while back, whereas the actual design is alot more conventional looking. It smells a bit of concept.
"Guys, it's a longer 747. How do we make it look cool and new?"
"Widdly bits on the engines and a nice floaty wing?"
"Make it so"