Strictly speaking, Siamese
only come in 4 colorpoint colours: Chocolate point, Seal point, Lilac point and Blue point, with a pale body color and the points being on the legs, tail, face, and ears.
Breed Profile: The Siamese
are cats with a similar Siamese-type conformation, but come in other pointed colors
, such as Red point, or Red Lynx point...Lynx=tabby stripes, Seal Tortie Point, Cream Lynx point. The body color is pale like the Siamese.
Breed Profile: The Colorpoint Shorthair
has the similar Siamese-type body conformation as does the Colorpoint Shorthair and Siamese, but comes in solid colors, tabby patterns, bicolors, particolors like torties (tortoiseshell), calicos.
Breed Profile: The Oriental
So I would say your cat Emily is an Oriental-mix, Cream mackeral tabby color. Mackeral is the tabby pattern that shows vertical stripes on the body like a Mackeral fish. Since she doesn't have any registered papers with a cat association such as CFA=Cat Fanciers Assoc., it's assumed she is a mix and if you compare her picture with the purebred cats, it's likely she has some DSH=Domestic shorthair in her genetic background.
She looks like a very sweet cat, and her blue eyes are lovely with her cream markings. Lucky you!