It is generally a best practice to be consistent with your profile image across your social media channels.
A special graphic created for time-limited events, campaigns or programs can also be used sparingly.
If you are using or creating a different kind of profile image (e.g. a photo) keep in mind that profile images are always quite small, and since most social media engagement happens on a mobile device, profile images are usually very hard to see. Simple, iconic images, like the social lockup, generally work best.
Photos work best for the header images on your profile pages. A photo resizes better for different-sized desktop browsers and mobile devices. Text and graphics can easily get cut off or covered depending on the device a visitor uses to access your channel. Cover videos are also an option on some channels.
Channels have different requirements for the cover size. Profile pictures intersect or conceal the cover image differently across social media channels. Make sure your photo fits the space properly and the best part of the photo isn't covered by your profile picture or other element.
Excellent photography, graphics and video are essential tools to communicate effectively on social media. Posts with clear visuals typically outperform those without visuals.