Looks good for the purpose to me. The 12/0 probably better than the 11/0.
The gape on two hooks I have used for Bakers is: SJ41 13/0- - 270 mm, Jigging Master 13/0 - also 270 mm.
The JM is the most corrosion resistant large jigging hook I have used but the angled back eye makes it slightly annoying for Baker purposes. SJ41s or anything with Owner gold finish is absolute rubbish from the corrosion viewpoint.