"Avengers: Age of Ultron": Concepts for Quicksilver's trail

Paolo giandoso ap trail 01 vp005 city
Concepts for the silvery trail marking the passage of Pietro (AKA Quicksilver)
Paolo giandoso ap trail 01 vp004 city
Concepts for the silvery trail marking the passage of Pietro (AKA Quicksilver), on black

Some of my concept works for "Age of Ultron"