I'm sure this image is hiding something, but nothing stands out no matter how I look at it. Maybe it's just stringing me along...
This challenge was easily completed by looking at the strings
I used a tool called stringcheese with the syntax
stringcheese leveleffect{ --file doubletake.jpg
MATCH FOUND! In stream[1::2], using encoding base64:
leveleffect{sneaky_utf-16le}
Easy as