I cant see this guys face clear enought in the pics im as blind as a bat!!
But the 2 points I know to look for in severums are longer more elongated pionts to the fin tips anal etc.. this is not always accurate with severums .. and also the little markings on the face are said to be more accurate as the females have a smoother face where the males can have squiggly markings/lines around the face.
Its a bonnie looking fish you have!!