Hell yes, it's done! It came down to very last mask again but I just kept jumping and hitting her and praying it would be enough. Once I saw her move to the middle, I just went for it. If that wasn't the final hit, I'm pretty sure I would've been dead. Of course it had to be like that.
My hands are still shaking. I'm not normally one to go seeking for ultra hard challenges so this was by far the single hardest thing I've ever attempted in a video game. Worth it though, I actually came to enjoy the entire Pantheon run once I got good enough at all of the bosses. The early part is perhaps a bit tedious with all of the easy bosses, but that's okay. This is enough for me though, I've got no desire whatsoever to try this with any bindings. That's a whole other level of skill.
I remember
@dumbo posting that Godhome was its own separate game and he actually preferred it over the base game. I wouldn't put it that strongly but I do think it's fantastic on its own. Some of the unique bosses that were added are among the best in the enitre game. I'd say Sisters of Battle, Sheo, Pure Vessel and Nightmare King Grimm are my personal favourites, so three of those are exclusive to Godhome.
I might try some of the bosses on radiant now, but I'm not going to make it a real target. Perhaps a steel soul run, that could be fun.