I thought it could be interesting to share with you the process I've gone through while working on the "The Bioboosted Hellspawn" artwork.
Try to show you the main steps of the development of this character. Maybe it will be enterntaining who knows... someone will learn something from this process 
( Btw. the finished piece is here: https://forums.cubebrush.co/t/the-bioboosted-hellspawn-comicon-challenge-2015/5808 )
1st step: tried to find the right pose and bodytype. Because I know from the beginning that he will have a musculature detailed armor I tried to put down the muscles right in the first phase.
2nd step: drew the "Spawn signature" cape because its just as important as the character.
3rd step: basic values
4th step: the most important one... to find the STYLE. Tried to find the right balance between the two characters. To be able to represent both epic figures.
5th step: made the "almost finished" design for the bodyarmor without the cape to be able to show as much details as I can. (not pretty happy with the face -_- )
6th step: fitting the cape and body together
Hope you liked it 
And here are some detailshots 
