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

I hope you are doing well! I'm sending you this postcard from sunny [location], and it is absolutely beautiful here! The weather is perfect, and I've been exploring some amazing places. I would love to hear what you have been up to lately and how things are going back home. 

Later, I plan to go to the beach, and I can't wait to share more stories with you. Let's chat soon! 

Take care, 
[Name]