Utterly beautiful!
Now you've got me wondering where this texturing foul-up is...
I have 2 candidates:
The impulse engines on the saucer, I always thought the grills on them were horizontal, not vertical.
Or it could be the upper edges of the nacelle field grills in the fan-out at the front, they look a little stretched or misaligned.
As you say, a very minor blemish on another absolute jewel in your crown! WELL DONE!