If you go into goodlock (which you may have to download from the samsung shop) and go into lockstar and enable it, you can add a gallery widget to your lock screen with whatever image you'd like. I generally use a cutout of whatever my wallpaper is, that way it can overlap whatever text I have for the cool effect. Hope this helps!
You may consider implementing DirtPickle’s suggestion to enhance the clarity of both the widgets and the lock screen information. Additionally, adjusting the lock screen color could help ensure that the displayed information remains distinct and does not visually blend with the widget elements, thereby improving overall readability.
