Little faces or animal details seem to be common on the architectural styles along South Main. This lion appears to be a bit worried. Perhaps because he's not sure how long he'll last?
Many of the taller buildings on North Main are neoclassical, meaning they have elements of classic Greek and Roman buildings. It's a common style for early 1900s banks because of its visual strength. This building also has some Italianate elements.
The next set of photos were taken on Little Rock's Main Street. Most, if not all, of the buildings pictured are vacant or abandoned. Photos of Main Street from decades past show crowds of shoppers and workers; those days are long-past. The above photo is from the old MM Cohn building, a department store that also saw its golden age many years ago.