Something that helps me define my style:
Take photos and print of your own favorite quilts.
Copy and print photos of quilts you especially like.
Collect photos from magazines that you especially like.
Make a collage on poster board
Then evaluate them for similarities:
1. Symmetry
2. Traditional, contempory, art, modern
3. Colors; value, intensity, hue
4. Atmosphere; calm, exciting, happy, etc.
5. Amount of detail
6. Era you like: cottage, primitive, etc.
Also list things you don't like
Keep going.
Ask friends