https://www.imagine.art/ online free for the no premium options ...
my test with "complex engine under water"
seems not enough prompt strength enabled :)
From an image made with FlowScape (if you find something more fun, let me know)
and put into Leonardo Image to Image!
By imposing a size of 1024 x768 on all "Finetuned" and just playing with "init strength".
Prompt "sunrise landscape
Needless to say, it's infinite!