It should be at least 300 x 300 pixels, but the bigger the better. A good rule of thumb is to use your logo on all your social media profiles, so if you have a 500-pixel square profile picture, it will fit basically all purposes.

Compared with normal 2D logos, 3D logos often give an illusion of depth using elements like shadows, reflections, gradients, highlights, etc.

You can display your new 3D logo brand on the website and all of your social media profiles or email signature and business card. Also, you can download and print it out to anything you want. Just make sure to use the logo wherever you promote business or brand.