For me the model seems to lack a focal point. There isn't a particular part that grabs my attention, being rather homogenous in colour and contrast.
For contests in general, and especially for ones that have public polling, there are always going to be results you don't agree with. I've been on either side of this, losing when I thought it was a lock, winning when I thought I had no chance. People don't vote simply on technical skill, their personal biases play a large role. It might come down to, no matter how well painted it is, people simply not liking a model, and there's not much you can do about that.