Hi Ingrid ...
You did add four photos to NGA, but I don't see a fifth photo, which would be the one you are showing in your post above.
I'll be you are wondering how I checked ...
Go to your profile ... the little person on the top right of this page and click on YOUR PROFILE. When that opens, drop down to the section below the photo of your cat to the section titled "Plant Database Contributions:"
Below that you will see a link that says, "4 Landscape photos". Click on that and you will see the photos you have uploaded to NGA that have been approved for display.
For a while, new member photos are reviewed. This is because there are some people on the net who try to post inappropriate photos to the site. I am not certain when that restriction is removed, but it doesn't last long.
You get a notification that your photo has been approved.
There are a lot of new members posting photos right now, so the approval process may be slower than what is usual for the site.