shoulder extension strength to balance out shoulders

Hello, I have an imbalance from working planche and pushing movements in general but not working shoulder extension and hyperextension. I want to know if it would help if I would work on advanced L - sits and V - sits. In addition to that I would work on victorian cross progressions and shoulder dislocates. Are those exercises going to balance out my shoulders? 

I´d like to hear your thoughts on this.

Hi Nicolas, victorian work for balance it is reserved for more advanced athletes who have already mastered cross and they are on the way up for maltese work.

For beginner up to intermediate, the focus should be the manna work.