To show the feeling of being alone , i think the best is that the character itself need to stay in a empty street and sit alone to look though the empty road. Using the back instead of character face, i think it can show that the character is tired in something, the more better way is that their can have some smoke came out from character
first picture:https://zh.pngtree.com/freebackground/man-is-holding-an-umbrella-while-the-rain-falls_2652338.html
second picture: poe.com(AI photo )
CHAN CHUN PONG 3036267135