I've been having so much fun sketching I need to refocus on anatomy. Random tumblr image. It took my THREE DAYS to figure out the curvature on the ribcage on the left. I had to come to the understanding that the ribs have two radiuses and a downslope. I have to envision it in my mind, rather than attempting to draw a line I see on a screen. I am learning a lot about making the art. Also I am assuming this is a male wolf.