Welcome audentiori, and Ronnientes, and WhOoShEz. 
audentiori,
One thing I would suggest is enlarging your canvas size and playing with your overall composition. Spatially I think it needs to be worked out where the person and the ledge on which he is standing needs to be worked out ~ I would draw the ghost outline of where the bullsā bodies are, their legs, etc. so that you can determine the ground plane, the perspective etc. and find out how to place everything in space. But I like the skewed / cut off composition, I would only suggest enlarging your canvas so that you know where everything is really placed in space. 
Ronnientes,
Welcome to the forum, and I hope to see more of your experimentation. Perhaps it would be good to sketch what the larger background would be, and not think about the specifics of the character, just the overall composition, and perhaps write a bit of a description / story to explain who the giant is and why he is waking up. This can go a long way toward helping determine the details of the giant in the long run. 
WhOoShEz,
I am not sure I understand what is going on in your piece yet. Can you tell us what is happening and what you are trying to describe? 
Cheers,
~Rebeccak