From the pictures, it looks like you're doing fine! Here's a little tip: you might consider trimming off that 1/4 inch or so of clear material that is at the edge of the Monokote. (I noticed it in one of the wing pictures) It makes for a cleaner covering job. Be sure to have plenty of #11 blades and single-edge razor blades available, as Monokote tends to dull blades quickly, and having sharp blades helps to make clean cuts.

Also, you might consider putting stripes on the bottom of the wing only instead of a stripe that goes around the entire chord of the wing so that you can differentiate the top and bottom of the plane in flight.

Keep up the good work!