Is what remains within the field of vision of the unlawful, unclear in its features, after averting one's gaze from the unlawful, considered unlawful?

Allah commanded the believers to lower their gaze. Gazing at forbidden things causes blindness of the heart, weakens insight, leads to vice, and corrupts society. If a Muslim unintentionally glances at something forbidden, there is no sin, but he must immediately avert his gaze. However, if he continues to look, he sins. If the features of a woman are not clear due to distance, it is not permissible to look at her. If you lower your gaze from the forbidden and do not see any part of her body, but you notice someone next to you, there is no sin in that. It is advisable to avoid excessive looking and to shun places where immodest display is common, unless there is a necessity.