Queensland State Archives posted a photo:
From the Queensland Heritage Register.
Central Station was constructed as the inner city link of the Queensland railway network, operational from 18 August 1889. The first Station building at Central was of timber and corrugated iron with pitched roof and segmental barrel vaulted roof over the platform serving Roma Street. On 12 May 1899, a contract was let for a permanent building. It is thought that the initial design was conceived in the architectural section of the Railway Department’s Chief Engineer’s Office, however the architect is unknown. The additions of the clock tower and awning were designed by former Colonial Architect, J J Clark. The initial complex comprised two through tracks and a dock with two tracks on either side. In 1909 the dock platforms were converted to provide two additional through tracks. No further substantial changes were made to the complex until 1914 when the

