alone commander

hi everyone

this is my first project i done in blender
i usually do my projects in cinema 4d but decided to do this particular project in blender
and i’m so happy with that!

main size is A4 300 res

render in cycles
3000 samples

post pro in photoshop

the cycles is great but i have problem with that:
cycles renders the blank areas and it takes many time for jobs like this(black area around the object is empty!)…i don’t know has it any solution or not?!
about the poster:
it refers to a commander-in-chief (named Hassan son of Illia) that his allies betrayed him and forced him to surrender in battlefield… a sad story for a warrior
this poster designed for his anniversary of his martyrdom

hope you like it