Planche open tuck

Is the Form ok? Ellbows not straight enouph?

Hip lower? 

Bent elbows (almost straight is bent for us), hips too high, not enough protraction.

 

So how can i fix it? My elebow feels locked. 

Go one step back?

it depends on different factors, if the problem is only the elbows, simply lock them.

for further tips please post a video.