These are basic Wildcards to infuse details to a given picture. It contains non determining descriptions leaving you the creative space, concerning the main theme of the picture.
If your model struggles with a more narrative-driven prompt, try reducing the cfg-scale for better results.
Description
{direct-view|soft-focus} photography, {spontaneous|unposed} portrait capture, {blurred|bokeh-enhanced} background, {intimate|observational} perspective, {candid|quiet} composition, {close-up|waist-up}, {diffused|natural} angle shot, {expressive|serene} portraiture