I made art Please critique it so I can do better :)

The protects the ear, collects sounds, and channels them to the middle ear a middle ear b ear drum' c front ear d outer ear

Which accidental cancels all other accidentals?

Riddle me this: i am first in earth, second in heaven, appear two times in aweekyou can only see meonce in a year, althoughi'm in the middle of sea. what am i?