Sigil vs seal Archangel Michael

What’s the difference between seal & sigil?

And this three pictures

Can all this be petition to Archangel Michael?

A spirit seal and a spirit sigil are the same thing. Some magicians, such as myself, simply prefer to call the symbols that represent spirits “seals” so they don’t get confused with the method of turning a statement of intent into a glyph called a “sigil” popularised by the Chaos Magick paradigm.

As for the symbols, the “signature” in the first and third photos, is his traditional seal. It is found in many older texts on ceremonial magick.

The second photo depicts what looks to be a sigil created by tracing the name Michael upon the Rose Cross sigil generator used in the Golden Dawn tradition.