Rainbow Limestone in the Cave 01

As I said previously, the mother nature is a great artist; I am helping the mother nature by adding colour to the limestone.  Although these are human-made artworks, but they look even more mysterious.

Rainbow Limestone in the Cave 02
The limestone looks like the ice, but the colour temperature is not completely cold.  So, I give it a name, “Hot Ice“.  May be I should have added some smoky effect.

Rainbow Limestone in the Cave 03
You are looking at the single-eyed limestone and the lime stone suddenly open its mouth with a low-pitched tone but loud voice, “I am looking at you too.  HOHOHO…”

Rainbow Limestone in the Cave 04
On the bottom left corner, red, orange and yellow give the feeling of warm and active.

On the top right corner,blue, purple, and pink :- calm, romance.

What should I say about the green between them?  poisonous or neutral or natural?

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*The pictures above are all edited using graphical software, by adding a multiplied gradient-filled layer. You can try it yourself too.

Tips:- If you use a rich texture and simple-coloured picture, you have a higher chance of creating nice pictures.

The original pictures of the above artwork can be found here - it is the limestone in Kek Lok Tong.

Hope you like them. :)