I was originally just gonna color all of them first and post them together, but I decided not to.
Eijiro Kirishima:
In this AU, his scar is on his left eye and his eyes are naturally blue. He was extremely outgoing in middle school and was very popular, he even asked his classmates to help train his quirk to get into UA (he basically asked them to beat him up). He's still a huge fan of Crimson Riot, but dyed his hair blue since it is his favorite color. He originally had a rivalry with Tetsutetsu, since they both had a crush on Ryuga, but the rivalry ended when they realized that they also had feelings for each other, although they still often compete on who's manlier.
Tetsutetsu Tetsutetsu:
In this AU, his hair is golden blonde. His quirk works a bit differently, he is able to consume both iron and gold but how much he eats affects his quirk, too much iron and his body gets harder but his golden color dulls, too much gold and his golden color brightens but loses his durability. His rivalry with Kirishima mainly happened because of Monoma's attitude to class 1-A and thought Kirishima was trying to steal his crush, Ryuga, but after spending a lot of time with Kirishima (they go to the same gym and have similar workout routines), he realized that they have a lot in common. Even though he's dating Kirishima now (and Ryuga), he won't lose in their manly competitions! (they usually always tie).