

How do I make this shirt look more like he 2nd pic?
The 2nd pic I just folded it up in the changing room (it's like 4-5 cm longer than in the pic)
The first pic I have cut and sewed the new hem. It looks very wonky and is flaring out on the sides, while the 2nd pic it looks structured and nice.
It's 98% cotton and 2% elastane