@ RU.08
The last one looks much better indeed. Yours certainly looks cleaner with less artifacts. It certainly is a lot better than a simple Spline64Resize. Compared to my method, the downside is that there's much less detail. Personally I'm not a big fan of sacrificing detail to gain a smooth image, but that's just a matter of taste.
My goal is to obtain a high resolution version of the GOUT, warts and all, so I've accepted that the final product will have excessive grain, and a number of other flaws inherent to the GOUT.
I'm aware that for many of you who are expecting a completely restored original trilogy, my grain filled high definition GOUT isn't good enough, but it's what I set out to do. As far as GOUT based upscales go, at least there's now another choice on the menu. Mine is a little rough around the edges, but I do believe it's the most detailed GOUT upscale to date, and I guess that may be of interest to some.