Here is some constructive criticism, so don't take it the wrong way, and of course you're welcome to leave it the way it is. The first thing that my eyes are drawn to is the displacement of the H as it goes from the wing on to the right aileron. I think you are going to want to adjust that so that the lines are contiguous...and that can be frustrating because it will likely take several iterations before the edges of that H line up.
The second thing I see is the saturation level and the level of darkening. It seems a little light and washed out to me. You can address this by making use of contrast and brightness controls in your paint program. One way to achieve the "correct", or at least the "Rise of Flight standard" level of saturation and brightness is to look at a wide range of other paints and see what you think looks best, and then try to emulate that. It really is subjective though. For instance, I just submitted a paint that looked good to me, and then afterwards, I made the mistake of looking at one of my friend's well-regarded paints, to find that his colors were about 50% more washed out than mine were. I wondered if he knew something that I didn't, but I ultimately decided to stick with my original, more saturated, interpretation...so don't drive yourself crazy with it and use your best judgement.
All in all, if that's your first paint, I think it's pretty good, and if you tighten it up just a little bit, I think it could be very good.