I have uploaded a design I came up with for reference. I don’t hate it but it is not professional quality. I like geometric contrast and modern elements. 
I want it to be elegant but not stuffy. I love stripes, and stars, but couldn’t find a way to incorporate them other than what you see here without looking a little too funky and taking away from the upscale feel I was going for. 
I am partial to black, white and gold, and accents of purple to lend personality and femininity but not girliness. 
My favorite thing about what I came up with is the stylized cake- if that can be included (with some professional magic added) that would be great.

Always Bring Cake