I am making a visual novel in Unity and I would like to use Midjourney to generate the art. The story takes place for the most part in a small 19th century dutch town, and image realism is important. There are two main characters (a young couple).

I attached an image of the town main square and of the main characters. 

The challenge will be to keep the characters' faces consistent in the subsequent images/scenes. 

I found that in my case, simple prompts worked much better than wordy ones.

These are the final prompts:

19th century dutch village main square market day overcast sky --ar 16:9

full body image of a young female 19th century dutch peasant against a backdrop of a 19th century dutch village main square --ar 16:9

full body image of a young male 19th century dutch peasant in traditional costume against a backdrop of a 19th century dutch village main square --ar 16:9

For the cover image I experimented with ChatGTP, it came up with a lengthy prompt, some of which was lost in the resulting image (lesson learned):

oil painting of a young couple of Dutch peasants in the 19th century. They should be sitting on a wooden bench outside a quaint, thatched-roof cottage, surrounded by lush green fields and a picturesque countryside landscape. The young man should be wearing traditional Dutch attire, complete with wooden clogs, a waistcoat, and a flat cap. He should have a kind and gentle expression on his face, looking affectionately at the young woman. The young woman should be dressed in a simple, modest dress with a lace bonnet, and she should be holding a bouquet of freshly picked wildflowers. They should be sitting close together, their hands intertwined, radiating a sense of love and togetherness. The overall atmosphere of the image should capture the idyllic and romantic essence of rural life in 19th-century Netherlands --ar 16:9 -