Create an ultra-high-detail isometric pixel art timeline illustration (3:4, 4K), integrating detail density, symbolism, and metaphor. The user-specified theme is [Western Art Development]. First, reason around Western Art Development to determine: the Chinese and English titles of the theme, the earliest and most recent historical periods covered, the starting stage label and the ending stage label, as well as 3-5 key evolution stages and their respective symbolic elements and color schemes. Then build an isometric "Evolution Museum" themed "Western Art Development", where each exhibition hall area represents an evolution stage, and spatial progression represents time evolution. Adopt a standard isometric perspective (2:1), rich layer depth, and smooth transitions. Allocate 3-5 symbolic elements strongly associated with the theme to each stage, and use differentiated colors to imply the flow of time. Integrate bilingual pixel font titles in the scene: Chinese "[Theme Chinese] Evolution History" and English "EVOLUTION OF Western Art Development", plus bilingual subtitles for the starting and ending stages and key time node markers. The overall style is professional and visually tense, suitable for academic analysis and comparative visualization, direct image output.
