Hi Enroper,
Yeah, the graphs look better. Well done!
The graphs are a bit too zoomed-in to get a detailed reading (mostly I can't read the time axis (front/back)), but you can see that you have a much flatter response.
For instance, in the before graph you have serious "valleys" (or "dips" or "nulls") at around 105Hz, 125Hz, and 145Hz. In the new graph, these nulls are practically gone!
No room is perfectly flat, but yours looks TONS better now than it did.... the overall response looks much less jagged, there are fewer high, narrow peaks and deep valleys in your response curve.
Did you re-arrange the room at all, or is everything still where you left it?
Most importantly, how does it sound? You should hear a much flatter bass response, put on a good recording that you know well with a nice bass line. You should be able to hear much more detail in the bass.
Depending on where you placed the wall panels (did you make a RFZ?) you should have much clearer stereo imaging as well.
Looks like you have a very good start!