This is a work in progress, and my first paid

portrait commission.
For some reason, I feel like this portrait is just lacking impact... Not sure if it's the lighting (it was very neutral/gray in the original reference photos, so I pushed it to more warm/cool - was that the wrong decision?) or just that the eyes lack a highlight (should I add one? - there was none in any of the reference photos taken that day) Any other ideas?
(I should note that their hair, limbs and his shirt are still very rough!)
Acrylic on Canvas,
20" x 24".