[Image to Video] Struggling to create a subtle, seamless looping animation from an image

Hello, I tried to encourage a single picture for a single ai-generated picture for a while in a seamless looping video, but I'm stuck. I have already spent a lot for repeated experiments, and although I can get some movements (the waterwells, sometimes the trees fluctuate), I cannot reach the exact style I want, and I hope that someone here may be able to share a few tips. The goal: a calm, permanently observable loop of this picture, in which everything remains blocked in place, no drifts, no camera movement, no forgiven, only subtle, gentle animation. I was successful with the water and occasionally with a slightly fluctuating grass and trees. But the stars should stay completely quiet; Most of the input requests make the entire sky. Instead, I want the stars in the brightness and size or glow (something like that, but less) a little, some of my better attempts with different models on replica (I have more, but no I would appreciate if you have advice, sample requests and a short workflow collapse that could help you, this Subtle, structurally presented loop.