It covers the period from the late 1950s to the mid 1970s. Dr Choong preferred to employ the Post-Impressionistic and Expressionistic techniques in oil, water colour and Chinese ink inspired by masters such as Cheong Soo Pieng, Ma Baishui, Abdullah Ariff and Yong Mun Seng on scenes of villages, mountains and tin-mines in Perak where he spent his childhood and boyhood days. In the "Beautiful River Side" series he employed the Chinese ink painting techniques to portray the way of life in the countryside on xuan paper which yielded amazing results.

近打系列是 1950 年代至 1970 年代期间创作的。这期间的水彩和油画是以后期印象派及表现派的手法为主来创作的，並采用水墨和水彩的混合技法，在宣紙上描绘近打风光，具有个人风格。尤其是「美丽河边」这一系列作品，技法独特，彩色浑然，把河边效野的风土人情表达得相当淋漓尽致。创作的灵感，多来自近打区的山川，村落，渔乡和锡矿场景，並受到锺泗滨，马白水，阿都拉阿力夫及杨曼生等的影响。

Village by The Water		Menglembu Hill
1963		1962
Ink & water colour		Water colour
39 x 57 cm		58 x 41 cm
Private Collection		Artist Collection
Park Mood		A Scene at Pangkor Island
1962		1964
Water colour		Water colour
38 x 55 cm		38 x 50 cm
Artist Collection		Artist Collection
Beautiful River Side 7		Beautiful River Side 11
1964		1965
Ink & water colour on rice paper		Ink & water colour on rice paper
31 x 61 cm		30 x 60 cm
Private Collection		Private Collection
Beautiful River Side 4		Beautiful River Side 3
1964		1964
Ink & water colour on rice paper		Ink & water colour on rice paper
24 x 35 cm		23 x 35 cm
Artist Collection		Artist Collection
Beautiful River Side 2		Beautiful River Side 5
1964		1964
Ink & water colour on rice paper		Ink & water colour on rice paper
23 x 35 cm		35 x 64 cm
Artist Collection		Artist Collection
Beautiful River Side 14		Serenity 1
1965		1965
Ink & water colour on rice paper		Chinese ink on rice paper
31 x 58 cm		29 x 55 cm
Artist Collection		Artist Collection
Serenity 2		Beautiful River Side 8
1965		1964
Chinese ink on rice paper		Ink & water colour on rice paper
29 x 55 cm		36 x 55 cm
Artist Collection		Artist Collection
Beautiful River Side 13		Beautiful River Side 6
1965		1964
Ink & water colour on rice paper		Ink & water colour on rice paper
47 x 60 cm		28 x 56 cm
Private Collection		Artist Collection
Beautiful River Side 12		Beautiful River Side 1
1965		1963
Ink & water colour on rice paper		Ink & water colour on rice paper
36 x 60 cm		61 x 31 cm
Artist Collection		Private Collection
Beautiful River Side 10
1965
Ink & water colour on rice paper
60 x 31 cm
Private Collection