No plot details or character information were provided for the film 'Half Virgin'. Therefore, an evaluation of its holistic portrayal of LGBTQ+ characters and themes cannot be performed based on the given input.

Based on the provided information, the film 'Half Virgin' (1953) does not feature any identifiable transsexual characters or themes. Therefore, an evaluation of its portrayal is not applicable.

The movie does not contain any action or adventure elements.

There is no widely available information indicating that "Half Virgin" (1953) is an adaptation of a work with pre-established characters or features historical figures whose gender was altered. Therefore, no gender swaps are identified.

There is no evidence to suggest that "Half Virgin" (1953), a Japanese film, adapted characters who were canonically, historically, or widely established as a different race in source material or previous installments. All characters appear to be original or consistent with their cultural context.