Looks cool! The cat looks comfy!!! I like the black trim too.....I have done that in my theater too.
Have you considered painting/applying a black masking border around your screen? The contrast is visibly improved and IMHO makes the movie watching experience all that more involving. Alternatively, you could paint your whole front wall black except for the screen and it (if you are looking for that effect) will help to hide your speakers so there will be no distractions. . It's only paint.....you can always go back if you don't like it.
BTW, If your ceiling tiles ever rattle, just fill up some quart-size lunch baggies of sand and sit them on top of the tile in the ceiling. The weight will help the tile stay settled.
Cheers,