Based on the information provided, the film 'Zarina' does not appear to feature any identifiable LGBTQ+ characters or themes. Therefore, no specific portrayal or net impact regarding LGBTQ+ representation can be evaluated.

Zarina (1932) is a historical drama that does not feature any identifiable transsexual characters or themes. The film's narrative focuses on traditional romantic and dramatic elements, with no engagement with gender identity or transsexual experiences.

The movie does not contain any action or adventure elements.

Due to the film's age and limited available information, it is not possible to verify any pre-existing character canon or source material. Without a clear baseline, it cannot be determined if any character's gender was swapped.

The film "Zarina" (1932) is an early Indian talkie. There is no indication it is an adaptation of source material or a biopic featuring characters with a pre-established race. Thus, no character's race could have been altered from a prior canon.

As an early Indian mythological/fantasy film, 'Zarina' inherently draws upon Hindu narratives and cultural elements. Films of this genre and era typically presented Hindu deities, rituals, and values in a respectful and affirming light, aligning the narrative with the dignity and virtues of the faith rather than critiquing it.