Highlight the central Asian and Greco-Bactrian elements in the Gandhara art. (150 Words)

Give a brief introduction about the Gandhara art. (30 words)
Briefly discuss how its geographical location facilitated interaction of various artistic components. (50 words)
Discuss about the influence of Greece- Bactrian, Roman and Iranian on the Gandhara art.(50 words)
Conclusion. (20 words)