PB has these blue tones that would look nice w/your furniture. I love this look: you need some art, bedding,,,and if possible, redo your headboard that will work w/the wood furniture. what you have now is too traditional looking. Or, keep that headboard and redo it w/diff material, maybe some tufting. plenty of DIY how to's online. Secondly, you have that beautiful tray ceiling that is under utilized. consider new paint colors, and do something w/the tray. you could also do a bead board or shiplap inside the tray, and paint it blue. more neutral tones, if you want that route. (a natural wood headboard in the tray would look great w/this option). look for a rug for under your bed walls white, ceiling blue. or blue tray insert w/white trim and a lighter blue or softer white on the walls.

If you're referring to the crocheted cloth, I call it old fashioned. I love crochet work and the old fashioned look, but many don't.

Some people have trouble from hteir phones and you have to remember to wait until the grayed pic becomes clear I am not seeing a typical New Orleans hose form that pic and I can’t enlarge that pic to see well enough to advise.These to me are typical New Orleans homes and yours is nothing like them from what I see

I would say colonial style and scandi go well together. I disagree strongly that you should keep to the original style of the house. However, as a designer, I would say different ideas look better together if they share some similar characteristics or are related - as colonial and scandi are. I think there some degree of lightness and openess in both style, turned wood in both scandi and colonial furniture, although lighter wood and white in scandi. With a keen eye and careful research, two styles that share some common denominators can always work; otherwise you risk looking like a museum otherwise. I would not mix tudor and scandi for instance or high victorian english, as they are diametrically opposed, but if they share components, go ahead.