Woman Within Plus Size Sleeveless Crinkle Dress

I absolutely love my dress. The colors are exactly what I was looking for. I will however, have to let out the seams around the arms, and around the "V" of the neckline. I find it to be too restrictive for me. I have larger arms and a larger bust. I have ordered this exact type of sleeveless crinkle dress years ago, and had the same problem with tightness. I guess it's just my body, or the type of material.