Redid the sea grass and tall variants today as well.
The seams are, as always, pretty tricky to do when 1- dealing with double height blocks and 2- dealing with animated blocks. As it turns out, having animation frames makes the task even trickier with regards to tiling/wrapping and seams between both textures that make up the double height block.
Anyways, here are some screenshots of both variants:

BSL v8 
BSL v8 
Chocapic v9.1 extreme PBR test 2 
Chocapic v9.1 extreme PBR test 2 
Continuum 2.1 alpha build 12 
Kappa v4 
Kappa v4 
Kappa v4 
SEUS PTGI HRR 2.1 
SEUS PTGI HRR 2.1 
SEUS PTGI HRR 2.1 
Spectrum 
Spectrum 
Spectrum 
Spectrum