بسم الله الرحمن الرحيم
(Fatwa: 331/312/N=03/1435)
The main part of a picture is head. Shariah does not consider a picture without head so it is not haram as it is narrated by Hadhrat of Abu Hurairah (رضي الله عنه) in شرح معانى الآثار (كتاب الكراهة، باب الصور تكون فى الشباب 2:366 مطبوعه مكتبه رحيميه ديوبند) and in another Hadith narrated by Hadhrat Abdullah ibn Abbas (رضي الله عنه) with the reference of Mojam al-Ismaili in كنز العمال (404:15 ، حديث نمبر: 41574 مطبوعه مؤسسة الرسالة بيروت), hence it is lawful to take the photograph without face and it is not lawful with face. (For details: see Jawahir al-Fiqh, 7:252-256, published Maktaba Darul Uloom Karachi).
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband