I would like to see the negative scan.
Your positive scan is considerably lower in contrast than mine, and quite a bit lighter. IDK what that means offhand at this point, but the 3rd patch from the left in the second row of your print is the red patch and should be as black as Dmax taken with this ortho paper, and the right hand bottom patch in the above should be black as well.
The left bottom patch should equal Dmin.
Somehow, the positive appears muted to me.
I looked at my originals here and they look close to the scan of the negative. A print is close to my positive scan as well.
I would like to add that my process conditions yield good prints with the proper tonality when used with an enlarger exposure of f11 - f16 at 12" for an 8x10 print. I use a 30M filter as per the enlarger instructions for grade 2 and this gives me a gamma of about 2.5 on a Stouffer wedge.
I would like to add that the negative step scale should show a distinct step in every position in that bottom row, from Dmin to Dmax if you have exposed it properly and developed it properly.
I would also add that there is nothing wrong with messing with the exposure and process in order to make a good picture, but this is not the way to start measuring the capability of the paper. You start by getting Dmin and Dmax centered with a process that can give good prints by normal means.