compare Brisbane with Seoul

I was born in Seoul and I've lived in Seoul for 22 years. I've never moved to another city.
Therefore, I can say that I know a lot about Seoul. I think Seoul is one of the most developed cities in 20 years. Now, I'm living in Brisbane. Therefore , I'd like to compare Seoul with Brisbane.
Although I've been living in Brisbane for 7 weeks, it'll be interesting for you.

First, although Seoul is much smaller than Brisbane, 15 millions people live in Seoul.
Just 1.8 millions people live in Brisbane. Since there are too many people and cars that cause air pollution, you can't see the blue sky frequently. Furthermore, you can't see beautiful stars. However, I can see the real blue sky in Brisbane. Nevertheless, many Koreans prefer to live in Seoul because it's very convenient. If you want to get something, you can get it in 10 minutes. Many people kill for living in Seoul.

Second, in contrast to Brisbane, Seoul is very humid in summer. Although it just 25 Celsius degree in Seoul, most people feel bad, since there is too much rains in summer in Seoul.
Whenver it is summer, I want to escape this city.
Another different thing is that if I want to across the crosswalk, I should push the button in Brisbane. However, I don't have to do it in Seoul. Moreover, people drive on the right in Brisbane, but People drive on the left in Seoul. There is one episode.
One day, I was walking with my friend near the road. At that time, I saw someone was driving the car with reading a book and eating something! Moreover, he didn't see the front!
I shouted to my friend. Unbelivable! After few minutes, I realized that he was driving on the right.

These are little difference from Seoul and Brisbane. At first time , I was a little surprised, but I'm getting used to Brisbane. If you have a chance to come to Brisbane, don't be surprised!