[writing around a circular image]

im completely new to paint.net so i hope someone can help me out as im stuck on the following:

i have an image which is round. i wish to write text around it but i can't find anything in paint.net that will make it look professional.

attached is the image. i wrote 'text' in red to show where i want my text to go. but i can't find any easy way to do this...

hope someone can show me a way to do this. thanks!