That looks fantastic! If you look close, there are some solder balls hanging out. In this case not much at all to worry about, and only mentioning since it will you help you with the next stencil.
But the fillets otherwise look dead nuts, and the parts seem to have self balanced about as well as you could hope for. Really awesome!
Also, your layout is sweet! (I just got my boards yesterday, took a slightly different spin. Will post in another thread.)
Would love to hear more about the controller. Reflow in an oven is all about accounting for thermal mass to get the right ramp and dwell times.