Is this a good planche?

no, i think, because the hips are not in line with the shoulders, but she seem to be close to it.

Her lower back is arched and hips are not in line with shoulders so it is not perfect.

Yes, of course I know that it is not perfect. Hips too high and not horizontal. But would you say it is good already or crap?

There is no good already or crap. There is only mastered or not mastered

Is is clearly not mastered based on what we can see in this video.

It is not crap, but it is not particularly inspiring either.  The hips are piked and the shoulders lack protraction.

 

Yours in Fitness,

Coach Sommer