Nice progress. I think it looks good, maybe a winner.
There are three things i noticed, not critical ones, but maybe worth a look.
The first one is that the lower leg, just below the knee is really pointy in the side view. This could be a design choice, but maybe an extra line would look better. It doesn’t look bad or anything, and it would work if the style was everywhere in the model, but i only see it here. 
The horn is intersecting with the helmet a little bit, hehe, nitpicking here…
The last one is really small, but i think the nose looks more like that of a sheep than that of an ox? Because sheep have this flat v hape at the bottom of their nose. An ox has this v shape but aren’t the nostrils bigger? So maybe make the nose a bit more pronounced?
Anyway, all small things. The model looks very good and clearly has a style of its own. I hope you finish it, texturing models takes forever. 