Some examples:

(The first time I see a signature with arrows — not to mention a spiral pin. “One can state safely”, says Levedev, “that the head of 2nd Moscow Police department was schizophrenic.”)
An arrow and a star:

And some samples from his readers:









The main themes seem to be round signatures in Chinese-character style and repetitive lines symptomatic of orbitofrontal cortical damage (or obsessive-compulsive disorder).