Two statues, probably Zinc, on consoles on the front faç facing Kaļķu iela.
Merkurs / Mercury, with winged hat, caduceus, anchor and bales of merchandise.
Messenger of the gods and god of trade, merchants, and travel, in Roman (Mercurius) and Greek (Ἑρμῆς - Hermes) mythology
(Wikipedia: Mercury - Hermes).
A Blacksmith with his anvil.
Annotation
Built as the city mansion for Otto Hermann Baron von Vietinghoff (Otto Hermani fon Fītinghofs) (1722-1792), but the statues are without doubt from a late 19th century addition, just as the initials and date "J.A. 1884" at the top of the façade.
Sculptor
Edvins Krumiņš (Ugale 1959,
Latvian sculptor, specialized in the restoration and reconstruction of historical monuments
(CV on Facebook).