He probably will copy these 5 frames to make a 10 frame animation and then continue the rotation and start the arms.
I reckon its easier to do the cycle with arms at the same time because it makes the poses better. Try making
the animation with him in the air for some frames. Its best if you get your animation right in balck and white first (easiest
to edit) and then color it. Thats how i do it.
Did an edit to show you how it looks better with vertical movement (but this animation still has problems, the arms seem to move
too fast).
Cute character. Is a ww1 pilot? Maybe you could have a scarfe then.