Nitro,
It is hard to see in the pics you posted. Don't forget, even after you cover it, you can take your blow gun to take out some of the wrinkles. What brand of covering did you use? Looks like a great job for the first time. You'll find it gets easier and easier the more you do. Take pride in it, I know I did with my first one.....many, many, moons ago!
And as WCB noted, the rudder gap needs to be tightened! If you've glued your hinges, your going to have to remove them and re-hinge, Gap should only be about 1/16".
What motor you sticking up front? If you haven't already, make sure you fuel proof the bare wood up front too.
Ya done good, be proud!
Gary