Can I Customize the Look and Feel of the MySite Widget?

You can completely customize the look and feel of your MySite Widgets if you subscribe to MySite Pro at a nominal fee of $4.49 / month. But if you choose to go for the free version of MySite then you'll have the freedom to select any of the pre-designed templates and colors schemes provided in the free account.

For more details on MySite Pro, please see What is MySite Pro?