Um, how do I change my picture from default to something else

I realize that you've been here for a while, so please allow me to offer you a late welcome! Better late than never!

Welcome welcome welcome! A fine welcome to you!

Welcome welcome welcome! I say, how do you do?

Welcome welcome welcome to a choice you won't regret!

Welcome welcome welcome to FIMFiction.net!

Thanks for following me, BigKirby!

I really appreciate it and I hope my stories continue to entertain you in some way.