No flames here. That plane looks like what we were building for free flight in the late 60's & early 70's. A very sensible way to start. With three channel (rudder, elevator & throttle) and the proper center of gravity balance point it would be the way to go. The Duraflite Butterfly is a similar design. A lightly powered glider with lots of dihedral.

I was self-taught on a two channel glider (a Sig Sirius), and that's after years of free-flight and control-line, but I still got burned trying to build and fly a Sig Kadet on my own. Gravity was less forgiving of the heavier airplane and my poor attempts at take-off. With a little more luck I probably would have been OK. But, as it happened, I lost interest and spent 15 years not flying anything.