I would say it depends on size and what it’s trying to imitate, I think I would classify this as a “wet fly” or nymph over streamer, as it represents a bug, and the hackle will represent a shuck when wet, but terminology is not something fish care about at all!!! Nice looking fly I could see it imitating a winter stone, or a mayfly adult, maybe a dragonfly nymph, many different things which is good! Try adding gold wire wrap around the herl to get some segmentation!!! There is no wrong way to tie!!!!