Part two: sunny and neon, full of good times and auspicious times.
Horizontal batch: the horse steps on Xiangyun
Interpretation: Thirteen-character couplets are happy couplets, but other characters are equally festive, and modern people don't pay much attention to them. The first part contains the first name, the second part contains the first name, and the horizontal batch contains the surname of the horse. If you don't want to use thirteen characters, just intercept the first eight characters. I gave you a formula for the first eight words, which is completely acceptable.
I wish your brother and sister a happy marriage and family.