The first is a weed that I have seen before but am not familiar with its name. The second is the Microsorum punctatum with amazingly artistic leaves with prominent midribs. The third is an interesting Macaranga with red inflorescences and flowers. The last two are the climbers Aristolochia with trumpet-shaped flowers and an unknown ivy-like plant with strange knobby extensions which help the plant to attach itself to the smooth surface wall.
They are all beautiful in their own way. Such is nature's art.
NB on 28 Jan 13: I found out that the unknown creeper is Parthenocissus tricuspidata (Common Name: Japanese Ivy, Grape Ivy, Boston Ivy; Family: Vitaceae) from the grape family.