Physical appearance and height differences are subjective, and what one person finds attractive may differ from another's preferences. However, in general, height differences in relationships are quite common, and many people are in happy and successful relationships despite varying heights.
A 5'3" girl with a 5'7" guy would have a height difference of four inches, which is relatively modest and would not typically be considered extreme. It's essential to remember that physical appearance is just one aspect of a relationship, and what matters most is mutual respect, communication, shared interests, and emotional compatibility.
Many couples with height differences find that it doesn't impact their relationship negatively at all. What ultimately determines whether a couple looks good together is their overall chemistry, how they complement each other, and the love and connection they share. Height differences shouldn't be a significant concern when considering a relationship or determining whether a couple looks good together.
In the end, beauty and attractiveness are subjective, and what matters most is finding someone with whom you have a meaningful connection and can build a strong and healthy relationship.