EASY
1 dog (A), 1 waterfall (B), 1 small tree (C)

MEDIUM
1 red brick (D), 1 red leaflet (E), 1 mule (F)

HARD
1 elf (G), 2 butterflies (H), ladybugs (I),
2 birds (J), 1 dragonfly (K), 1 frog (L)