Congrats on the reflow. May I remind you of a few things for future projects: An oven? with no board bracketry, and support? Its a wonder it worked at all, maybe by chance or luck. And it plays its part alot in this process I have found.... The #1 thing that I found doing this, and is required in some cases is a bracket designed to dis-allow the board to flex/bow/warp.

Something to look into on future reflows. Also liquid flux is a requirement. Without it, the solder degrades and will re-break again in short order. The no-clean flux is garbage, I tried it. So be warned. I have found the chipquik flux being the most effective. Some guys use kingbo. YMMV