Ive been playing with incrementing age in Grok Imagine prompts to see how realistic it is and have noticed some interesting behavior. I have been specifying either "25 year old" or something like "in her 20's" and then incrementing it by 10 years until it breaks. From 20's to 50's you see a lot of change/obvious aging(although it always seems to lean younger), it starts to break down from 50's to 60's then breaks fully after 70's and starts showing results similar to 20's or 30's again. Interestingly, if you change the first word from "A" to "Beautiful" then the subject will not age nearly as much(see "50 year old" with and without "beautiful" below).
You may want to play with this if you are trying to create realistic images, this will help you get away from that standard beautiful 20 year old that everyone is creating.
* Sorry about the redgif links apparently i cant post images or videos inline anymore
Example starting prompt(Cover image): "A woman in her early 20s in a retail fitting room taking a mirror selfie while trying on an ultra-mini white pleated tennis skirt with no top. She has platinum blonde hair in soft waves, brown eyebrows, slightly messy, with some behind her ear and some framing her face. Her expression includes big doe eyes with a soft questioning look toward her iPhone, a soft pout with a slight lip bite, and slightly raised brows, giving an innocent 'is this too short?' look. Her body is petite with a tiny waist, surprisingly full chest emphasized by soft curves at the hips, toned long legs, and pale porcelain skin. She poses with one leg forward, hip popped, one arm taking the selfie with her iPhone, the other tugging the skirt hem downward, and her head slightly tilted looking at the phone. The environment is a retail fitting room with bright lights, front and side mirrors, a bench with her clothes, hooks, bag, and sandals on the floor. The photo is framed from mid-thigh to head in a 9:16 aspect ratio, capturing an intimate, casual, authentic fitting room moment with a contrast between her natural tan and white skirt, motifs of hem tug, visible tag on the skirt waistband, and a beach-girl shopping vibe."
https://www.redgifs.com/watch/dopeyknowingdipper
Same prompt except 30's:
https://www.redgifs.com/watch/darkolivegreenovaljaguar
Same prompt except 40's:
https://www.redgifs.com/watch/punyplaintivehalicore
Same prompt except 50's:
https://i.redgifs.com/i/waterloggeddistincttilefish.jpg
Same prompt except 50's with beautiful in the prompt:
https://i.redgifs.com/i/agitatedskeletalbarnswallow.jpg
Same prompt except 60's:
https://i.redgifs.com/i/steelblueunrealisticcomet.jpg
Same prompt except 70's(breaks down here):
https://www.redgifs.com/watch/silverblankeyas
Same prompt except 100's
https://www.redgifs.com/watch/enviousgrimfishingcat
