$1+ I need help choosing a thumbnail again! (Patreon)

Finished editing my bass-playing video for the vlog channel, but I dunno which image will make the most eye-catching thumbnail. Help me decide! I appreciate reasoning left in the comments! :)

Images are all below. They will be cropped and brightened as needed, so this isn't the final result!

IMAGE 1 - Concentration

IMAGE 2 - Close Up Torso

IMAGE 3 - Happy Face

IMAGE 4 - "Bass" Desires