Twitter Headers (1500x500) are easy to to create using cropped photos. See the 32 headers I created using photos I've taken over the years and how I did it.
2. What I Did
1. Read Create a New Twitter Header in 3 Easy Steps.
2. Noted the potential problems w/ header text in the post Comments.
3. Opted to focus on creating cropped photo headers.
4. Selected a random photo and cropped it in PicMonkey (see post).
5. Uploaded the cropped photo into Twitter as a header.
– I wanted to see what the input of a 1500x500 cropped photo looked
like as a header output.
– Recropped to adjust content at the edge of the image.
Practiced until I was confident I could control crop-to-header process.
6. Curated an new ImageHolder folder of images with header potential.
7. Cropped, tested and saved 32 photo headers in a new Twitter Header file.
They can be used as is or as starting points for layered work in the future.