I am looking for the feeling to create the 5 world, and at the same time, I am also searching the style I like.
I find the oil painting effect I really like, but I still doubt the environment I build is the right choice for me. I am tweaking around another choice. I think I will rebuild the whole world with other techniques. It will more controllable by me not just randomly put some stuff together to create the feeling of metal, wood, water, fire and earth feelings.
Here are the results now: