My only concern and feedback here is, all the images are on the brighter side.
Why does that matter? Because the nothing font on the lockscreen is white too. It doesn’t correctly contrast with a majority of the wallpapers that this produces. One extreme example to convey my point is shared below.
But even in less extreme cases, the contrast isn’t good enough to look satisfying. I simply use the original nothing black wallpaper because of this.
The solution?
An option to generate images with darker backgrounds would be good, but to really address the crux of the issue, an option to morph the lockscreen text color based on the background would be ideal.