“The post does have a website attached to it, but they do not reference anything about the wallpaper 😕; it’s just a picture they posted... I also emailed, but no response.” It sounds like you didn’t contact the designer (I couldn’t tell from what you’ve written whether it was “Design Chic” that you contacted). The designer they say is Jenkins Interiors. That pic is on the Jenkins Interiors website under their bathrooms pics. Here is another pic from their website using that wallpaper. You can contact the designer using their website’s Contact Us page—unless that is what you already did: https://jenkinsinteriors.com/contact

It's Queen Anne (Taupe) by Rifle Paper Co. from Hygge and West that's been discontinued. https://www.instagram.com/p/B1MWFr_l5uW/ Benninger 33' x 20.5" Botanical Wallpaper in taupe by Gracie Oaks is a very close match. So is A Street Prints 271623867 Gossamer Grey Botanical Wallpaper.

Sure, here it is … the name of it is Shaan: In a lighter color, looks like yours. it came in various colors, both flowers and background … Home Depot, Lowes, Ama-zon, etc used to sell it, but all are saying out of stock. Hope you can find it!

hard to see since it's so far away. could it be a Jamestown Toile pattern? or this one? https://www.wayfair.com/Kelly-Clarkson-Home--Audio-Wallpaper-Roll-X114158955-L6161-K~W003047844.html Looks like a toile from Thibaut Chateau Du Loir https://patiolane.com/thibaut-chateau-du-loir-beige-on-white-f97309-toile-portfolio-collection-multipurpose-fabric.html https://www.thibautdesign.com/inspiration/index/details/collection/Toile%20Portfolio/pattern/Chateau%20du%20Loir/id/994/ Fabric match is here: https://www.spoonflower.com/en/fabric/7094012-marseilles-toile-gilt-on-cosmic-latte-by-peacoquettedesigns?country=us&currency=USD&fabric=celosia_velvet&fabric_size=test_swatch&measurement_system=imperial&pr=false