My top lip is larger than my bottom lip. Would it look odd to only inject my bottom lip with Juvederm? (photos)

Thank you for the question and the photos. First, you have a very nice shape to your lips and would look great without treatment. Second, the balance between the upper and lower lip volume is typically 1/3 to 2/3. Taking this concept, your lower lip is perhaps a bit smaller than ideal relative to the upper lip.  However, many patients come in for injections to make their upper lips look just like yours already does!  A small amount of filler to the lower lip would be a reasonable treatment. Best of luck moving forward!

Your lips look normal even with the asymmetry--leave them alone and do nothing--they look beautiful as is.