Surveying for Bali paintings

I thought it would be a good idea for me to buy some oil paintings in Bali. So have been googling to estimate how much should I spare to buy paintings when I am in Bali.....

These are some pictures taken from other bloggers:

Absract painting. From IDR500k down to IDR250k. Blogger here

IDR200k

IDR1.0m. Blogger same as abstract painting above

3 small paintings for IDR50k 

Location to look out for:

• Not Ubud Market but street Jln Raya Gentong from Ubud to Bangli Kintamani
• Maybe Sukawati Market.