As Sergey Fedotov's painting is original, so the signature of the artists also is specific. It represents the transformation of letters S and F, that are the initials of the artist. The signature is built organically in a picturesque surface of pictures. Usually there are two signatures, but sometimes exists more signatures. More often the first signature settles down more close to the left lower corner of a picture, and the second – near to the right lower corner. But sometimes the composition forces to do them more close to the middle of picture.  Color and tone of signatures also are important ordinary "left" signature ( that in the left corner) is “colder”, than "right" one. Direction and a bend of signature  element  which correct a direction of movement of the sight looking at a picture are extremely important. Therefore inspection of signatures of the artist has separate aesthetic pleasure.