Is it permissible to bathe with pictures of individuals who are believed to be the cause of stumbling and lack of success in work, and who are suspected of envying, with the intention of healing from the effects of envy?

There is no evidence for the legitimacy of what was mentioned. If you are afflicted by the evil eye, ask them to wash for you. Taking the trace of the envier is not permissible. Be careful not to accuse anyone of the evil eye without confirmation. Seek help through ruqyah (definition), adhkar, and gratitude, search for the tangible reasons for what is happening, rectify any shortcomings, and strive in supplication.