This is sort of based on a Sopwith Pup, because I drew the airframe of one earlier this year – see my sketchbook – https://youtu.be/sUii48gMaHA
This tutorial shows you the structure of a biplane and how to draw your own. See more WWI WWI Drawing videos here:
Tip: you can use the space bar to stop and start the video to keep up with the drawing. You can always watch through again if you find it a bit complicated.