@FoamyDM Thanks for your feedback. I like your design too. I'll have to give it a try. Looks like you mimicked the simple theme nicely. I'll have to build yours and see how it compares.
See if this helps. Fold the wing back on itself and glue really well. Next cut to remove the triangle on the leading edge marked by the blue line. I make a line on the top of the wing to cut too. Since this is a long cut I next sand it until I get a nice straight leading edge. Next I remove all of the paper top and bottom leaving only paper where they pieces are glued together. After the paper is removed I sand a smoother curve on the top of the wing to create the desired airfoil.
After everything has been sanded I run a piece of packaging tape along the leading edge to give it some durability.
For the fuselage I've coated it with a thin layer of craft glue.
You've done exactly what I wanted people to do with this design, use it as a starting point to make there own. My 3 year old son wanted a biplane so we've adapted one to that. I've added 2 RC channels to another. The tail on the RC one cracked the other day so I might end up leaving some paper there.
I've removed a lot of the paper it is a 25% weight reduction which also helps with reducing crash damage.
I'm working on making a build video but life has gotten in the way as usual.