If you are shooting macro, my friend once told me, any bushes you see can start shooting
For Scenery, there are many places in SG, for instance...Mt Faber, ECP, WCP, Hort Park, Pasir Ris Park, Reservoirs (Pierce, Seletar etc), Train Stations, Changi Broadwalk, Punggol (near the waters, sry, can't recall the name), and any places you see (the only limitation is your imagination, which I lack alot in that department)