Nice! The shape of the windows looks great, and the stone around it really draws the other stuff in, has consistency and looks great. I do think they should be moved higher up the wall to fit the space better, and maybe the bars over the windows look a little... Jail like? Maybe have just one vertical bar instead of two, or try some other way to do window panes. Try stuff out and see what works!
I think the gargoyles look great, only thing I can see is the colors look slightly different than the statues in the fountains. I can't look super closely now, so maybe they do match, I'm sure you know better than me.
So also, looking at the round windows I did, I think the perspective is a bit off. Maybe they need a pixel or two of width added so the top side of the bottom edge of the window is more visible, so it looks more tilted and less upright. I might have time to do that today, but not sure.
Anyway, the stair/path connections looks great too! Very smooth. And yeah, those new windows I think add a lot to make this look more like a classy castle, great job