Yeah, that would be a bit too hot for most of it.
Kind of hard to tell from the picture, but the gray scaling is normal. If you see it start to deform and bulge a bit that’s definitely too hot.
It’s always tricky if the weld ends up over the internal threads, because they tend to melt pretty easily. Tapping the shell after welding can clean up most of it.
I did a little markup, the red spots look like they are starting to deform/bulge a bit. The green area seems alright from that picture. The yellow would be where you may have not had enough penetration? It’s possible you did, but looking at the inside can’t tell you the whole story.
Realistically though, if those areas are out of the threaded section it’s likely okay. A little too much penetration (or properly called burn-through in this case) isn’t always a bad thing. It’s better than not enough penetration or lack of fusion.
edit: I would guess you welded from the yellow area, to green, and then to red. So it likely built up a bunch of heat by the time you finished that weld.