Consistency comes from holding things fixed
A coherent set is produced by changing exactly one thing between images. Fix the style block, the seed where the model supports it, and even the word order — which affects weighting — and vary only the subject phrase.
Most inconsistent sets are inconsistent because the prompt was rewritten slightly for each image.
Describing style instead of naming artists
Naming living artists to borrow their style is legally and ethically contested, and several providers block it outright.
Describing the visual qualities directly — palette, medium, lighting, era, brushwork — produces the same result, transfers between models, and gives you finer control than a name does.