Twitter is the fastest, simplest way to stay close to everything you care about.Now a days twitter has introduce new features for users to add new profile header photo which is very similar to Facebook timeline .That photo will appears in the large area at the top of your profile page.
Earlier there is a small avatar image to work which represent you or a brand .I think this Long profile photo on the profile page will helps you to make you profile more interactive as well as changing background also make more interesting and interactive page.
To do so follow these few easily steps
Step 1 Login into your twitter account
Step 2 Click on the setting button present at the top right-hand corner and then choose setting in that.
Step3 In the menu that loads on the left-hand side ,select design.
Step 5 After uploading click on "Save changes" .