Step one: First draw the left ear and top of the head of the big-eared dog.
Step 2: Then draw the other ear, and then draw its face shape.
Step 3: Then draw its overall outline, with a round belly and small limbs.
Step 4: Then draw the tail of the big-eared dog, and then draw the toothbrush held in the left hand.
Step 5: Then draw the foam around the mouth, and then color the toothbrush.
Step 6: Finally, color the big-eared dog that is brushing its teeth.