After deleting similar images, videos, or screenshots, you need to clean the Recently Deleted album on your device. You can do this by following the steps mentioned below:
Click on "Photos" on your Device
Then Click on "Collections" in Photos
Then Scroll down and click on "Recently Deleted" folder
Then Click on "Select" above
Then Select All or the desired photos to delete. You can also restore the deleted photos from here. If you want to delete the selected images then, you have to click on the Three dots menu above.
Then you have to click on the "Delete" button
This is how you can clean your Recently Deleted Album.