Ow do the the temple of Athena Parthenos differ from Temple of Portunus(Rome) ?

just one source from website the others can be books , journal or article. Please use formalism (shapes , line, arch features, color , height, orientation ) and contextualism (when , why ,where , who?) English is not my first language so can u please write it easy to understand. The paper will discuss the differencess and the similarities between these two temples by using formal and contextual analysis.