One leg out FL checks

[crude pewter]

Is this form acceptable?

And how can I do the straddle with legs flat, please give me some tips🙏🏿🙏🏿

[round wadi]

back can be slightly more straight or horizontal

way i got my straddle was not focusing on single legs but instead slowly extending both the legs into straddle,
almost like the same progression into a full front lever but slightly easier
once you reach half lay straddle you're chilling

[stray reef]

No. Your body line is very wonky. You should have a straight body line with a neutral scapula.

I would regress, and do a progression where you can hold good form with straight arms.

[crude pewter]

U mean extend my legs from adv tuck to staddle?

[round wadi]

essentially yeah

work on keeping the body straight