In Mary Kate's first class I chose the phrase 'Mary had a little lamb'. You can see my project here:
Here's my final sketch:
For inspiration I chose some Victorian children books and posters:
I like the combination of green, crimson or burgundy and beige or golden.
Then I made a sketch with colored pencils:
After I'd digitized the black and white image I colored it partly in Illustrator and partly in Photoshop. I used the same pallette as in the sketch but changed a lot:
After that I made some textures with pencils, ink and markers:
I didn't use all of them.
Here is my final variant with digital color and textures: