i suggest u stay there for atleast 1 or 2 years, get some experience first before u back hk. people in hong kong are always seeking for animator who has over seas WORKING experience. if u come back here as a fresh grad, ur over seas STUDY background won't get u any adventage than a IVY or Poly grad student.
ur showreel is strong enough to get a job in hong kong~dun worry~ just if u want to have better OFFER, u should think of over sea working exp first~