I asked someone to try on the garment again. This time I really thought about the design. I felt that it’s to mach waist bands in my design, so I decided to deleted the waist bands at the bottom.

I found the shoulder part still isn’t suitable for the body. So I arranged it again. I adjusted the innermost line a little bit loose and the outmost line more tighter. So the outmost line will not fall off and leave some space for the arm to move.