YOU SAID:

He came riding from the south side slowly lookin' all around

INTO JAPANESE

彼は南側から乗って来て、ゆっくりと周りを見回していた

BACK INTO ENGLISH

he came up from the south and looked around slowly

INTO JAPANESE

彼は南から上がってきて、ゆっくりと周りを見回した

BACK INTO ENGLISH

he came up from the south and looked around slowly