See Diagonal front dumbbell raises
You are with the back to the low pulley and you are in mildly stridden staying position. Otherwise is the technique the same like in the basic variation.
Generally one arms adaptor can create problems with conducting the movement with the thumb ahead. It can be better to use holding on stringy knot of stay.
Primary:
m. deltoideus - front part
Secondary:
m. deltoideus - middle part
m. trapezius
