Thank you so much for that quick replay!
are there also some local photo tours in Singapore which are joinable?
EDIT: can you also recommend when to go there? in the Morning, in the evening, on weekends?
and are there some special spots in those particular locations where i definitely have to go?
I am not sure about local photo tour, but you can check out tripadvisor
Civic district, no particular timing but weekdays the best
Chinatown, afternoon onward, night time is good, weekend the best
Little India, anytime, if you are very bold, go during weekend afternoon.
Bugis, day time, first and fifteen days of Luna months is the best
Kampong Gelam, any time is fine, but Friday around noon time is more interesting
Clark Quay, after sunset
Boat Quay, meal times or after sunset
btw, Orchard Road and Botanic Garden also can consider, if you want to see lots and lots of people, go during weekends