劉時棟的拼貼作品蘊含了豐富性與生命力，透過視覺上的解離、並置、融混等手法，創生出符號關係曖昧且意涵交織的繪畫性空間。細看他的作品，觀者會發現不同的紙質、鎊數、色料以及印刷技術，讓這些影像碎片在色彩、厚薄、質感等方面都產生出微妙的差異，再加上藝術家有意識地以顏料基底收拾畫面的空間與層次，其美感經驗自然不是均質化的數位影像所能呈現。
Liu’s collage works are full of a richness and vibrancy, using visual techniques such as placement, dissociation and amalgamation to create a painting-like space of ambiguous symbolic relationships and interwoven connotations. Scrutinizing his works, the observer will find within varying paper textures, densities, colorings and printing techniques that produce subtle variations amongst these fragmentary images in terms of shading, depth and textures as well as the artist’s conscious effort to orchestrate space and dimensions of the images through arrangement of the pigment substrates, presenting a sense of experiential beauty unlike that of the uniformity of digital imagery.