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 building labeled "Fulk" is one of the few from this series that is not vacant - it houses Bennett's Military Supplies, a 100-plus-year-old shop that has always been on this block. The building itself is in sad shape, however, and I don't know who "Fulk" is.