Cat-Witch Brew T-Shirt Design

I'm seeking a talented graphic designer to create a Halloween-themed t-shirt design centered around cats. The design specifics are detailed below:

*Design Concept*:
Cat-Witch Brew

*Illustration Requirements*:

A cat wearing a witch's hat. The cat should have a playful or mischievous expression.
The cat should be stirring a cauldron. This cauldron can emit some magical or mystical smoke/sparkles to add to the magical vibe.
The overall style should be a blend of cute and spooky, suitable for a fun Halloween t-shirt.
Text:
"Brewing up some purr-fect spells!"
The font should complement the illustration, having a touch of whimsy while being clear and readable.

*Color Palette*:
Please stick to a Halloween color palette. Predominantly black, with accents of orange, purple, green, and white. However, I'm open to the artist's interpretation and creativity.

*File Requirements*:

High-resolution vector file in .AI and .EPS format.
PNG file with a transparent background.
A mock-up of the design on a t-shirt for visualization purposes.
Revision:
Please include at least 2-3 rounds of revisions in your quote to ensure the design aligns with the vision.

*Timeframe*:
As soon as possible

*Additional Notes*:
I'm looking for a design that is both fun and eye-catching. Please provide a portfolio or examples of previous similar work when applying. This project has the potential for future collaborations, as I plan on releasing more themed t-shirts in the future.