These are really bugging me. Here is what I believe:
Watermark Crown, Die A (SG 327?)
To its right Watermark Crown (Inverted), Die B (SG 329?)
Watermark Crown, Healthy Lion, Die A (SG 341?)

In the next picture:
Watermark Simple Cypher, Die B, pinhole (SG 336?)
Watermark Simple Cypher, Healthy Lion, Die A (SG 345?)
Watermark Multiple Cypher, Healthy Lion, Die A (SG 349)

Can our British experts check my SG numbers? It would also be nice to know the corresponding Scott numbers (if available). Any extra value to the inverted watermark? Also, what is meant by "No cross on crown"? (Is this the cross on the watermark or the cross at the very top of the stamp?) I'm only missing a couple of the 1/2d stamps in order to complete the page. Thanks so much.