NWT Eliza J formal floor length gown

NWT Eliza J floor length gown in navy. Please see the last pic for detailed description! Beautiful form fitting gown. I am modeling it and it zipped well but a little tight. I am a size 10 in tops and size 8-10 in bottoms. I usually wear a size 12 in formal gowns (example: badgley Mischa) and I would buy a 12 in this gown even tho it zips up. It’s my mid section that jumps me up to a 12. I think going up one size would be more flattering on me. Use that info to decide if it will be a good fit for u! *again, see last pic! ** one of the gowns has the tag on it, the other has the plastic piece but the tag fell off. BOTH ARE NEW!