Yes, Jack-O' doing the actual Jack-O' pose!

By Apex Toys: Jack-O' from Guilty Gear Strive specifically; crouching pose. #GGST #Jackopose #Jackochallenge #animefigures #figurephotos #FGC #gamefigures #impracticalcrouchanimation #ballandchain #halo #trickortreat #フィギュア #ギルティギア