30MF Liber Bishop

The 30MF Liber Bishop model kit contains the 30MF Liber Priest and Liber Bishop 'Class-up' upgrade.
This was my second 30MF kit and first 'Class-up' set.
By far most of the MF kits across both Liber and Rosan use the Silhouette 1 body, so it can freely equip the Archer, Assassin, Lancer and Knight armors too, although none of these armors come by themselves, they all have a Silhouette 1, but in different colors, with one exception: Priest, which has the same grey body and purple rings as the Knight.
Fighter and Wizard use Silhouette 2 (shorter and wider) and 3 (taller and slimmer) respectively and not all things fit the same across all bodies. Likewise, not all 30MM and 30MS equipment fit onto them or vice versa, though you can generally expect 3mm pegs to fit in some way.

Aesthetics:
The Liber Priest uses the same Silhouette 1 body as the Knight and uses light grey plastic, purple collar and rings on arms/legs, and clear blue plastic for the eyes and chest gem.
The Liber Priest also uses the same grey-white plastic that the Knight does for its armor and the same purple plastic for the cloth parts on its chest, loin cloth and skirt "armor". The staff has an octahedron (two pyramids stuck together) in the same blue transparent plastic as the eyes and gem.
The Bishop uses a pale gold almost brass colored metal injection plastic, which for once looks very good. The 'Class-up' Bishop upgrade adds gold to the wrists, knees, loin cloth, the staff (turns it from a short staff to a proper and longer staff), shoulders, forehead, chest and back, while the chest and 'crown' forehead parts replace the Priest parts. The chest plate also features two matching purple vestment ribbons (clerical stoles). All in all it genuinely looks like a visual upgrade and while there is a high fantasy look, it's not nearly as visually 'explosive' as the Liber Holy Knight, which uses a more yellow and cheaper looking gold. The staff especially looks far more present.

Mechanics:
The Silhouette has a single arm bend (bends most of the way), 180 double knee bend, dual peg disc ankles (double swivel) and 30MS style hands, only much larger. 30MS comparable articulation with somewhat human-like movement/posability, which is more advanced than most Bandai kits in some ways and then have other limitations in others (like the single arm bend).
There are no special gimmicks or functions, the main draw is the modularity of equipment.
The Bishop ribbons can swivel side to side.

Equipment:
1 set of Priest Armor that leaves the knees, wrists and thighs bare
1 Priest Staff, which is more like a scepter
1 'Class-up' Bishop set of gold layering and replacement parts
6 hands - Holding, fists and open palms
Assorted purple rings with and without pegs

Conclusion:
I really like the Bishop 'Class-up' parts, they look so much better than the 'Holy Knight' set, the gold is far better and despite the more high fantasy look, it's not too out there. He does look more royal than religious though, due to the crown parts.
The cloth parts looks way more purple than the product images.
I took the shin parts from this and moved it to the Knight and used the Holy Knight's gold shins on the Bishop instead.
While you can't expect perfect compatibility between 30MF kits, the Silhouette 1 are all 100% interchangeable.