That looks very good IMO. Art styles good, lighting is great, self-shadowing is great, animation is good. Graphically the only complaint I have is zeckensack's - why the shimmer in this day and age? Memory limits for mipmaps?
The only thing that rather peturbs me is what relevance as the use of a Wiimote in a party game like this. I've played golf games with friends, and the idea that on my turn I'd have to get out of the chair, swing a virtual club, and return, is more effort than I want for a simple game (and no I am not lazy, cycling a dozen miles for work every day!). To appease me they'd need to add a 'lazyman' mode where instead of having to go through the natural club-swing motion, you could just swing the Wiimote casually from down to up, say.