>>3013768I'm just distracted by the pores here, its tipping on moodys door but its really flat. Used a 1:1 ratio (more or less) with the ambient light.
>>3013769Don't neglect your background, that sign really ruins it. Should have shot or just moved more to the right. I feel like crop the crop could be tighter too. Generally side-lighting shows textures best. up clarity slider can help a little here as well.
if you want to go further you can use Nik Software's SilverEfex with a high structure layer at low opacity and masking to bring out some microcontrast in the dude.