Quote from ang_99:
I don't see anything wrong with these gaussian drawings at all.
Just because the first black volume bar is taller than the second doesn't make our INCREASING black annotation wrong.
You have to keep things in context when drawing gaussians, you don't know what the previous bars looked like and you also don't know that a large print didn't cause this also a few other things to consider like time of day, economic announcement could have caused a flurry of order during that bar etc...
Maybe I'm wrong.