Try to include metaphor and allusion. Play with the perspective; it can be from any character’s viewpoint.
Read the short extracts from Invisible Cities by Italo Calvino and If nobody speaks of remarkable things by Jon McGregor.
OR...If you really do not like the idea above, choose one of the ideas from the link below.
Some things to remember about descriptive writing
Appeal to senses
Use imagery (similes and metaphors)
Be allusive
Reflect and make connections with life issues
Make personal connections, think about what this reminds you of
Tell a story through description
Observe closely
Find your voice
Focus on the detail and the whole
Think about tone: humour, sarcasm, joy, humility, and sadness
Reflect on how the charachter feels
Ideas for topics for descriptive writing from:
http://wwwfp.education.tas.gov.au/English/writers.htm