Hello Hoost,
my name is Liliana, i have over ten years of experience as a designer, and what i like most is to illustrate, that's why i like this project.
Please, visit my Freelancer portfolio https://www.freelancer.com/u/webpolis.html
to see some of the illustrations and designs i made, in order to evaluate my work.
I can send you more samples, if you want to.
I use Illustrator for this kind of projects, i can deliver you the card as layered AI vector format ready to print, and also saved as PDF, as you requested.
I found this project really enjoyable and interesting, and i would like to create an original, simple and fun birthday card, based on the attached images and your description.
I hope we can work together, please, contact me if you have any questions, or if you want to see some
more of my work.
Best regards.
Lili.