After 6 months online my first image have reached the 2nd level with 5 downloads. It's a picture of blue piece of polished agate stone. As it's an example of pretty crystalized mineral it can be used as a decorative illustration, as a background or texture, as well as an element of combined graphic related with health, magic, jewellery, luxury or wealth.
Agate is attributable to the zodiac sign of Pisces. It brings victory over enemies, happiness and health for all those who is wearing agate jewellery. You can feel the good energy of fossilised agate stone which can soothes the mind and prevents fever.

Read more about that widely-used semi-precious stone at wikipedia: http://en.wikipedia.org/wiki/Agate.