Contrary to what you might have been expecting - perhaps some delicate aquatic creature, or a type of magical fairy - the Seasprite is actually a big hunk of metal. Drat.
As usual, Ralph Savelsberg (Mad physicist) has knocked it out of the park with this build. According to Ralph, the UH-2A Seasprite was used by the US Navy as a utility helicopter and a plane-guard helicopter for aircraft carriers. I'm a big fan of the bright contrast in colors (that orange is one of my favorite colors!), as well as the techniques used to create tapering slopes and the greebles used in areas like the landing gear.
It looks like Ralph also managed to include a sliding door and retracting landing gear, which adds a nice bit of functionality to this excellent display model.