Deep Tide a pack's own
12 pieces, a skin. Declared by Coral - which is where it was submitted from, not where it belongs. 5 from Coral, 4 from Court, 3 from Knightly.
Diamond and lapis over the scale skin, light blue in every dye - a dorsal fin down the crest, fins at the temples, a ridged spine and a pair of swim fins. Five sockets are this pack's tidal pieces; the other seven are the mod's neutral plate, which is what this set always leaned on.

The picture above is the editor's, taken when the outfit was saved. The real figure is the editor itself, and it is handed the pieces this outfit borrows, so it wears every one of them. Open it in the dressing room to turn it round or change it.
One zip, both halves, with a function that gives the whole set. Needs the Armor Pieces mod, 0.3.0 or later, on Minecraft 26.2.
Wearing it
helmet · minecraft:diamond_helmet · too long for a chat line; use a command block or the pack's function
/give @s minecraft:diamond_helmet[armorpieces:decorations={brow:{material:"minecraft:diamond",decoration:"armorpieces_knightly:visor"},crest:{material:"minecraft:diamond",decoration:"armorpieces_coral:dorsal_fin",fittings:{"armorpieces:inlay":"light_blue"}},horns:{material:"minecraft:diamond",decoration:"armorpieces_coral:head_fins",fittings:{"armorpieces:inlay":"light_blue"}}},armorpieces:skin="armorpieces_court:scale"]chestplate · minecraft:diamond_chestplate · too long for a chat line; use a command block or the pack's function
/give @s minecraft:diamond_chestplate[armorpieces:decorations={back:{material:"minecraft:diamond",decoration:"armorpieces_coral:spine_ridge",fittings:{"armorpieces:guard":"minecraft:copper"}},collar:{material:"minecraft:diamond",decoration:"armorpieces_knightly:gorget"},pauldrons:{material:"minecraft:diamond",decoration:"armorpieces_knightly:lames",fittings:{"armorpieces:guard":"minecraft:copper"}},vambraces:{material:"minecraft:diamond",decoration:"armorpieces_court:bangles",fittings:{"armorpieces:gemstone":"minecraft:lapis"}}},armorpieces:skin="armorpieces_court:scale"]leggings · minecraft:diamond_leggings · too long for a chat line; use a command block or the pack's function
/give @s minecraft:diamond_leggings[armorpieces:decorations={belt:{material:"minecraft:lapis",decoration:"armorpieces_court:sash",fittings:{"armorpieces:guard":"minecraft:copper","armorpieces:inlay":"light_blue"}},knees:{material:"minecraft:diamond",decoration:"armorpieces_court:garters",fittings:{"armorpieces:inlay":"light_blue"}},tassets:{material:"minecraft:diamond",decoration:"armorpieces_coral:scale_skirt",fittings:{"armorpieces:guard":"minecraft:copper"}}},armorpieces:skin="armorpieces_court:scale"]boots · minecraft:diamond_boots · too long for a chat line; use a command block or the pack's function
/give @s minecraft:diamond_boots[armorpieces:decorations={spurs:{material:"minecraft:diamond",decoration:"armorpieces_court:streamers",fittings:{"armorpieces:inlay":"light_blue"}},greaves:{material:"minecraft:diamond",decoration:"armorpieces_coral:swim_fins",fittings:{"armorpieces:inlay":"light_blue"}}},armorpieces:skin="armorpieces_court:scale"]The pack above has to be installed for these to do anything; its function gives the whole set in one line. Open this in the dressing room to change it.
Something wrong with this outfit? It is declared by a pack, so the answer is a release rather than a takedown: tell us by email.