The first remix is by TBW favourites YACHT, who have added their characteristic slight jerky electric sound to the song, keeping the hopeful feeling of the original.
The second remix by Death to the Throne transforms the song into the territory of darker skitterish electronica that would have been out of place on the last Darker Side of Synths mixtape I put up a couple of days ago.
Noah and the Whale – Blue Skies (YACHT remix)
Noah and the Whale – Blue Skies (Death to the Throne remix)