Front lever hold - one leg - first attempts

As many may argue about one legged front lever, I decided to try them out. My body wasn't used to that position and I could not extend my leg fully and I had muscle cramps on my glute, quad and my foot. Especially on my right leg, my left was more loose.

Here is my attempt on my left leg. The feeling was strange, but clearly I was not strong enough to hold one leg.