Another Penny Black Plating Question

Trying my hand at plating a Penny Black, limited information online that I can find. I used http://maltesex.com/plating/ , but I couldn't enlarge the images to get a good view.

So, here's my best guess. I'm saying plate 4. All I can go by is the letter positioning. The J looks to be centered to the left slightly. And the B looks high in the box and tilted back to the left.



Also interesting is the red Maltese obliteration. Using my handy RC Alcock Identification chart it looks to be from Brighton.

I think it's a plate 4 too.

As for the Maltese cross, I haven't a clue!