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.