Mixed Leghorn: Rooster or Hen?

[lanichicken346]

Thanks for all the help guys and for all the welcoming messages. Much appreciated! Im from Cape Town, South Africa. I might take him back to the breeder but I am excited to see what he will look like as he gets older.

These are a few photos of my other 3 hens. Looking to get a couple of more hens. Maybe 3 now that I know one is a rooster!