When Eawoto was put in charge of the seasons, he got many complaints from humanity because they could not appreciate the seasons. They complained about the weather, the humidity, the days or nights not being long enough or being too long. He created personifications of each season so people would be able to see their beauty, and each spirit appeared to every person with beauty and carried the energy of the season they personified. They can appear as either male or female and depending on the tastes of the magician.
Eawoto created The Summer Spirit, The Winter Spirit, The Spring Spirit, and The Fall Spirit and these four are present in parts of the world where their season is happening. These four can be appeased by protecting the environment and engaging in activities appropriate for the seasons such as going for walks, going to the beach, swimming, gardening, wearing appropriate clothing for the weather, etc. but they typically are not sought out to grant anything like deities or worshiped directly. You can technically call upon any season at any time since they will be present in different parts of the world.
The seasonal spirits were created with the essence of Nagareru-No-Kami so they typically flirt. Summer appears as tanned with blonde hair and golden eyes. Spring is fair with dark green hair and eyes the color of amethyst. Fall is a ginger with eyes the color of maple leaves, appearing either muscular or thin. Winter is a large lumberjack wearing plaid with icy blue eyes with dark hair usually either black or brown. They appear differently to each person but these are the images I perceive of them. They can be called upon for fertility or anything related to nature such as farming or making the most of the season they embody. They can also teach you secrets about the cycles of the world and about why this plane of existence has seasons at all.