Generally in church, and particularly as an elder, there is need to be great wisdom exercised about how we speak about each other’s personal appearance. Great damage can be done by needless throw away comments which can cause frustration and distress to people.
Humour, in particular, can be particularly destructive. By way of example it is best to steer clear of joking about someone’s summery clothing. You may think that their appearance provokes a response, but is it called for for you to joke about it? The person may have issues of health or personal comfort. If you think their clothing is immodest then you need to speak to the person about it seriously.
Men making comments on the clothing of women, particularly those who are younger to them, should be a completely embargoed. If such is done it can arouse all kinds of feelings in the woman about the man being interested in her.
However, when the clothing of a woman is unseemly and not fulfilling the call of 1 Timothy 2:9-10 to be discrete. The Word there says: likewise also that women should adorn themselves in respectable apparel, with modesty and self-control, not with braided hair and gold or pearls or costly attire, but with what is proper for women who profess godliness—with good works. In such a situation an elder or older sister should approach the lady involved.
In all this husbands should encourage their wives as regards to appreciating them and treasuring them. They should tell them of how they appreciate their appearance.
I just feel it is area where great care be exercised. In everything we say we need to think about whether this is contributing to building someone up.