After creating a Calendar, you can always change the cover or adjust the content of your Calendar selecting or adding different photos, you can always check here for more detailed explanations.
To edit, just click on 
button on the top left corner of the screen
Now you will see the photo 
icon on the right side of your calendar. To change the cover, go to your cover page and click on the icon on the side of the cover photo and you can select a new one.
If you would like to replace photos of other months in your calendar, you can also click on the same photos icon on the side of the page to add more pictures or replace the ones you don't want. You can add up to 10 pictures per month.
Once you click on the photos icon, a tab will open at the bottom page where you can select the photos for the page. You can click on the photo to add it to the page or to replace it.
When the changes have been made, click on 
button to save it.
If you'd like to upload your own photos to the calendar, scroll down until you see "Your Uploads" option and click on 
button.
If you have any questions, please don't hesitate to contact us!