Yes, though the waterfall still shows more dB range vertically than I prefer, and it would be good to see what happens up to 300 Hz. But between this and your previous waterfall, it's clear enough to see what's going on. I don't need the original REW file to know what to suggest.
I agree that the peak at 70 Hz is probably noise or hum. You can tell because it doesn't decay as do all the other peaks. A non-decaying peak is also common at 60 Hz or 120 Hz, due to AC mains hum.
That said, you will definitely benefit from bass traps. Those two deep nulls are robbing much of the low end you'd otherwise hear. And the ringing peaks are equally damaging. I'm also concerned that frequencies between 35 Hz and 70 Hz seem too soft compared to the rest of the range.
What speakers do you have, and what is their spec'd response?
--Ethan