Both the right hand and the left hand are sticking out
The strange thing about this photo is that both hands of the person walking are swinging forward at the same time.
「右手と右足が一緒に出ている。」= Both the right hand and the left hand are sticking out / The strange thing about this photo is that both hands of the person walking are swinging forward at the same time.
ボキャブラリー
both = 両方
right hand = 右手
left hand = 左手
sticking out = 出ている
strange thing = おかしい所
photo = 写真
the person walking = 歩いている人
swinging forward = 前に振っている
same time = 同時に