Damaged, great job on your first flat grind. With the notch there, it's hard to tell, but it looks as if you carried your flat up past the spine. That's something that is very common early on in flat grinding, and it takes practice to learn how to "sneak up" on the spine with your flat and get a nice transition from your plunge to spine. I do all my heavy grinding to get close to final dimensions, but I leave about a 1/4" or so between the top of the bevel and the spine. This allows me to creep up on it as I progress to higher grits.
Also, a common thing to do is to grind too hard at the edge of the platen. This happens especially at the plunge area, and you will get a gouge that carries up and through the spine. In order to avoid this, be aware of you pressures and how the sparks are coming off of the belt. Try and keep the sparks towards the middle of the belt. However, you also have to be aware of the dreaded 2" line if you linger too long with the plunge at the edge of the platen.
Great job! Keep it up.
--nathan