The Unicode Consortium has made a huge effort better reflect and incorporate human diversity, including cultural practices. Here is the Consortium's diversity report.
Emojis of mixed gender situations are now available, such as same sex families, holding hands, and kissing. The real kicker are Emoji combined sequences. Basically:
|U+1F469 U+200D U+2764 U+FE0F U+200D U+1F469|
|U+1F468 U+200D U+1F468 U+200D U+1F467 U+200D U+1F466|
Further, emojis now support skin color modifiers.
Five symbol modifier characters that provide for a range of skin tones for human emoji were released in Unicode Version 8.0 (mid-2015). These characters are based on the six tones of the Fitzpatrick scale, a recognized standard for dermatology (there are many examples of this scale online, such as FitzpatrickSkinType.pdf). The exact shades may vary between implementations.
|U+1F3FB||EMOJI MODIFIER FITZPATRICK TYPE-1-2|
|U+1F3FC||EMOJI MODIFIER FITZPATRICK TYPE-3|
|U+1F3FD||EMOJI MODIFIER FITZPATRICK TYPE-4|
|U+1F3FE||EMOJI MODIFIER FITZPATRICK TYPE-5|
|U+1F3FF||EMOJI MODIFIER FITZPATRICK TYPE-6|
Just follow the desired Emoji with one of the skin color modifiers