The person appears to be a/an Middle Eastern Male, approximately 10 to 19 years old.
Salam! 

I hope you are doing great! I'm sending you this postcard from sunny [location], and it’s absolutely beautiful here! The weather is perfect, and I’ve been having a great time exploring the area. I really miss our hangouts and would love to hear all about what you’ve been up to lately. 

Later, I’m planning to hit the beach, so let’s catch up soon! 

Take care, 
[Name]
Hey dude! 

Hope you're doing awesome! I'm sending you this postcard from sunny [location], and it's epic here! The weather is perfect, and I've been checking out some cool spots. Can't wait to hear what you've been up to! 

Later, I'm hitting the beach, so let's catch up soon! 

Catch you later, 
[Your Name]