pencildj,
Hey there, I think that it would be great to see you push this further. 
I think the main thing would be to look at more reference for the body, in particular, the torso. A personās torso is really not defined in such a linear manner, I really recommend looking at justmeinaās page which is linked in the first post of this thread for reference.
As well you may wish to look at reference from bodybuilder sites, since you are going for a very built look in your figure.
I think that the figure also needs more contrast and more small areas of highlight. Whatās most important in an image is less color than value ~ and I think that giving more variety to your lights and darks will give the image more depth.
Apart from that, I donāt know why the figure is in space ~ there need to be more clues as to why that is the case, since the theme is about an underground giant. The figure may fit in better to an environment that is earthbound ~ otherwise, the story is unclear.
Hope to see your progress on this! 
Cheers,
~Rebeccak

) I think you should try and think of a lighting setting. Right now, thereās no clear light source. Everything has mainly the same brightness and I do not see where the shadows fall (and shadowed parts are kind of must-have with a character/creature like yours! )







