Based on looking around this forum and others, I think I've nailed down my cat's (Kohaku's) breed as a Tuxedo Lynx Point Siamese. Have I gotten it right?
He's a pretty big boy as you can see in these pictures:
And he has been getting progressively darker over his lifetime. He's just turning 6 now, and he's always looking for 5 more minutes of sleep when it's time to wake up:
I've always thought his pattern to be amazing, and he has wonderful blue eyes to go with it. Here's a few more cute pics of him:
This picture also has his sister in it. Her name is Sith (but she is called Sith-Chan as she is a girl). She is a black with a single white locket on her lower belly, which she does her best to hide all the time (Edit - now it's the right picture):
Hope you enjoyed the pictures! Please tell me whether I've guessed his breed right - I've always been looking for what to call him exactly.