1. In picture a, there's one cloud, but in picture b, there're two clouds.
2. In picture b, the man's hair is straight and blonde, but in picture a, his hair's brown and  curly.
3. In picture b, the mat is square, but in picture a, it's flat.
4. In picture a, the duck is big, but in picture b, it's small
5. In picture a, the helicopter is flying, but in picture b, it's on the ground.
6. In picture a, the trees have got many leaves, but in picture b, they have been defoliated.
lần sau hãy cho ảnh rõ hơn một chút.