Illustrations of concentration

Concentric Circles
Concentrated Circles
Circle Graph
Oval Carpet
Many Concentric Circles
Target test
Free!
Orbit
Fading Circles
Boy Sitting Sideways Holding A Brush
Two Concentric Stars
Digital Background
Digital Background
Concentric Stars
Concentric Stars
Target
Round Cog Or Gear
Round Cog Or Gear
Man In Boots With Stressed Face Writing On Paper And Sitting In Desk
Half Body Man With Stressed Face Sweating And Writing On Paper
Man In Boots With Stressed Face Looking At Hand And Sitting
Man In Boots With Stressed Face Sitting In Chair
Man In Boots With Stressed Face Holding Pen And Sitting On Chair
Concentric Design With Split Circle
Concentrated Kid Holding A Brush And A Sphere
Concentric Circles
Abstract Curved Lines
Concentrated Girl Holding A Marker