The phrase "additional portraits" is correct and usable in written English.
It can be used when referring to extra or supplementary images or representations of people, typically in a visual or artistic context.
Example: "The gallery will feature additional portraits of historical figures that were not included in the original exhibition."
Alternatives: "extra portraits" or "supplementary portraits".
In left panel of the Moreel tryptich (Figure 2F) changes were made to the positions of the male children behind William Moreel: an additional portrait (of his fourth son) was inserted between that of the two boys already in the background while the eldest son was moved closer to his father (Figure 2I).
The end of the book features additional polaroid portraits, which were shot separately to the original portraits and sent to the individual artists for approval.
In the specific case of Boetti's self-portrait, additional requirements arise from the very critical exhibit condition, which can enhance the degradation rate of the protective layers applied onto the surface.
Includes candid publicity shots joking with her co-stars, and attending a Star Wars themed polo match, posing with entire principal cast in street clothes (signed to Debbie Reynolds by David Prowse) plus an additional color publicity portrait of Darth Vader signed by David Prowse.
Additional components give similar portraits but with additional separation for pool 6 from pools 1, 4, and 5.
Shadid's reportage on the Arab Spring brought him additional acclaim, especially his engaging portraits of the protesters.
The last-chance syndrome similarly gave an additional allure to a large portrait painted by Matisse in 1942 in a manner that harks back to the 1920s, "Danseuse dans le fauteuil, sol en damier".
The wall portraits may take on additional meaning this week just as a convicted Srebrenica war criminal has been announced as dead in prison at The Hague.
Additional approaches that integrate the molecular portraits of the tumour and predict the therapeutic responses need to be developed.
