Look at the blue object! That is a well-known mountain in West Sumatra, Indonesia, named Mount Marapi (2,891.3 m). It is still active. Sometimes, the smoke appeared on the top. Still, it is one of favorite destinations for mountain climbers in West Sumatra.
Actually, I am not quite satisfied with the result, but this is the best I could do. I will appreciate any suggestions to improve my next photos. Thank you very much!