Pinyin: ren2 qu4 lou2 kong1 Definition: people are gone, the tower is empty; cf Yellow Crane Tower 黄鹤楼, Tang poem by Cui Hao 崔顥|崔颢, with theme the past will never return/nostalgia for old friends
Pinyin: tian1 ma3 xing2 kong1 Definition: like a heavenly steed, soaring across the skies (idiom)/(of writing, calligraphy etc) bold and imaginative/unconstrained in style
Decomposition Levels: Level 1: Only divided once. So only two components. Level 2: Radical Decomposition. The character gets decomposed into its lowest radical components. For the complete list visit the Radical wikipedia page. Level 3: Graphical Decomposition. Shows all the strokes & lowest level of components that make up the character. If you see questions marks or too many "block" characters, especially when it comes to level 3 decomposition you might need the correct font.