Which is a Better Profile Picture?

On choosing a perfect profile picture.. THE STRUGGLE IS REAL. ;>
Can you help me out? Which of these 4 suits my display name which is @thewalkingdiary

1. This is what I'm currently using, I was in Naga City, here in Philippines a beautiful and relaxing place. I wish to visit the place again but it takes 11-12 hours drive from home. :)
   

2. This was taken here in Tarlac City, Philippines a historical place which is the Capas Shrine. The back light from the sun is the best effect here.:)
   

3. Also taken in Capas Shrine, but the flag represents my nationality here. Pure Filipina by the way.
   

4. And this is my blogger photo. It says "Tara, usap tayo!" In English, Come, Let's talk!

So, if you we're me, which one would you choose? Thank you!