I think she cleans up really nicely. Saw her in some party type photos and she looked great. She's rocking the plain, cop look for the show.
As for the last episode, it was great watching Trinity make that terrible, heartless kill and then going home much as Dexter does. He is the evil mirror image of Dexter himself. I think Dexter will find some level of professional respect for the fact that this man has successfully carried out decades worth of kills and maintained a family and eluded justice. Of course Trinity is not married to Rita-lol. Trinity is who Dexter wants to "grow up" to be-on the "good guy" side of course. He wants to take what Trinity did and do it better. their face to face encounter should be very intense. Hatred for hurting Deb, professional curiosity and "respect", and the kill of a worthy adversary. Looking forward to it!