Excessive Facial Aging After Rhinoplasty?

Thanks for the question.
First, it is unlikely that a Rhinoplasty in itself caused accelerated facial aging. It is possible that after investing time, money and pain from recovery and surgery, you are paying more attention to your face and becoming more critical of yourself.
Doctors often encourage patients to bring in these types of pictures, but it is important to realize their limitations. I think your pictures have relatively good consistency of the position of your mouth, but in some of them you are squinting somewhat secondary to the sun or lighting. Consistent photos (same camera, same lighting, same distance, same background) are critical for true comparisons. All that being said, I do think that your nasolabial folds are somewhat more pronounced.
This may be part of your normal aging. Different people obviously manifest signs of aging differently because of differences in environment, skin elasticity, facial structure and many other factors.
A ten pound weight loss is likely not overly significant in the formation of crow's feet or deeper nasolabial folds. It typically requires greater weight loss to manifest concerns you address in someone who is relatively young (your skin tone is more resistant to these wrinkles when you are younger).
My first piece of advice would be to take a deep breath. If these issues really bother you there are permanent effective, low scar techniques like fat grafting to soften these lines.
For younger patients that have these concerns, we typically recommend trying a facial filler because it is temporary. If our patients like the results, we can perform fat grafting with virtually no scar. They've done quite well with this two stage process.
I hope this helps.

Your rhinoplasty likely did not cause the change in your facial features. Sometimes though, successful nasal surgery may allow a patient to "move on" and notice other issues.
Your weight loss of 10lbs is significant and can contribute to facial volume loss - one of the issues we encounter in most young patients. Many long distance runners or triathletes in their early or late 20s may have similar concerns. We usually treat this with injectables for volume restoration (i.e., Radiesse, Sculptra, Juvederm).
Facial fat grafting is another option although we like to combine it with other treatments that require a recovery anyway.
I hope this helps.
Frank Fechner