Nothing to see here.

— then it's art nouveau

and if the sexy lady has a bob cut or a hair cap and is wearing a column or flapper dress; there's a lot of geometry like rectangles, arches, rays, and diamonds; angels have super sharp wings and a lot of muscles; everything is steel, concrete, marble, gold, and red velvet seats; everything is VERY angular; and all the foliage is basically papyrus fronds; things feel vaguely Egyptian or Turkish or Mesopotamian; the fonts play with being very skinny or very thick and are sans serif with extra lines; or Gatsby would be found floating dead in that pool

— with lots of lush flora, tiny insects (like dragonflies) or graceful birds, stained glass, iron, warm golden lighting, lots of wood and wood carving (but now it's more wood paneling), a stylistic fondness for Japan, line weight variation in the font, and tile (but this time it's carved or sculpted on, not tiny mosaic)

but you're worried it's art deco

— because the forms (especially foliage) are very symmetrical and slightly more angular or blocky and graphic looking, things are more rectangular than circular or curvy in architecture, the patterns repeat more often, and more of the lamps are pyramids or rectangular, and there are nods to Egyptian or Ottoman style, and they used the color red (probably in an accent chair or carpet rug)

BUT there's no steel, concrete, gold plating or gilding, marble, big muscles, spiky or radiating diamond shapes, angular people, or flappers,

AND the vibes are jacobean, gothic, or spanish mission revival; they love some brick and stone; the wallpaper is an explosion of colorful pattern that could give you arsenic poisoning or help depict a descent into postpartum psychosis in a famous short story; but there are NO people to be seen, not even sexy ladies,