Onam is a festival mainly celebrated in Kerala every year. It is a harvest festival, although there is a mythological story to it too. You can read it here.
Seen here is a typical flower decoration/arrangement called pookallam.
Onam is on 23rd August this year.
Noisy Pilgrims 
Beautiful. Love the rich colours. Thanks for the link to the story of Mahabali and the origin of the harvest festival. Enjoyed reading it!
Fantastic color!! Love the framing!
rich colors dude!