It looks like his style and wouldn't appear he struggled with portraying people.

Hitler painted a watercolor titled "Memorial Shrine" in 1915 while recovering from wounds in Belgium, depicting Jesus visiting a wounded soldier resembling himself, reflecting his Catholic beliefs and sense of divine protection, often seen as a deeply personal work alongside his architectural and street scene paintings from his time as a struggling artist in Vienna and Munich before World War I

It looks like his style and wouldn't appear he struggled with portraying people.