You have two choices, one, you can become a Supporter Level One or a Supporter Level Two member
Go to your "Settings", then look for the "Paid Subscriptions"
link. You will see info there.
OR, you can just delete some of the pics you have posted, and add your new ones.
TIP: Be sure and resize your pics to be a good minimal size before uploading them. 80KB - 100KB is a nice size without loosing any details