Some solutions (Score 1)

Solution to 1

Solution to 2

Solution to 3

1. the number of ice drops behind his back skate
2. the right-foot skate blade
3. the tassles at the end of the scarf are missing
4. correct
5. the number of lines on the closer end of the scarf
6. the direction of the blades on the windmill
7. the socks

Solution to 4

Solution to 5

Solution to 6 - any takers?