Thank you, i'm sure it'll be worth the wait. Here are some xerath and skarner skins ideas i'd love to share, keep up the good work!
Dark Star Xerath: there's even a wonderful concept ( https://boards.na.leagueoflegends.com/en/c/skin-champion-concepts/JAgAUXGU-skin-idea-dark-star-xerath?show=flat ) made by SlownD. Dark themes suit xerath particulalry well, due to his personality and story, and shooting deep space energy would fit him like a ring;
The new Dark Cosmic line is also so fitting for Xerath: being so powerful, he could manage the power from both Dark Star, and Cosmic Reaver.
Archlight Xerath: one of the most evil characters in LoL trying to redeem himself? White and gold armor, white particles with symbolism and plummeting dark forces shooting blinding light arcanopulses, or purging them from the skies with celestial arcane barrages;
Harrowing/Haunted Xerath: i mean, his armor is a sarcophagus, just make it creepier with some dark material/monstrous insertions, slap some green/light blue spooky particles, let him unleash his spooky magic while ulting, et voilà, you just found a skin for the next harrowing!
Mecha/pulsefire Xerath: i just need a good mechanical/robotic alternative to Battlecast Xerath. Armor transforms as he casts his spells (to each spell his form) and returns normal after the cast: it'd be so cool to see him transforms while comboing. Orange/yellow particles, and you're good to go.
Void Xerath: this one may be a little bit trickier, but with the organic armor, and tendons or alikes keeping it in place, Xerath should still look quite Void-y while casting purple colored spells!
An ascended Xerath skin would be top of the top, however i don't have any solid concept to go from =/
Battleboss Xerath: like seriously, already playing against xerath feels like a boss battle, where you got to close on him dodging everything he throws at you. he was even the boss in ascension mode, how about that!
Elementalist would be cool too, Q could be a concentrated ray of wind, W water from above, E some kind of lightning, and R could work as a volcano erupting.
or you could switch between R and W
also Program, but he really fits well into any tech-y theme, just switch his sarcophagus armor with some metal, slap some cool VFX and there you go
Edit: with Stars Shaper, we went with the idea of a magic lancer xerath:
His q could be a spear that stretches as j4's does (maybe he juggles with It as charging animation?)
His w can a spear falling from the sky
E could be another type of spear, or a morning star.
R could be javelins
His armor could be like the Lancer zero skins, or made up with weapons and blades, like a moving armory
Also, i'd love if a skin could be made out of his concept art, those black and white particles are really nice.
Skarner:
Giant enemy lobner/deep terror skarner
Surprisingly to me, a lobster skarner skin is a popular concept. however i don't want it to be an april fool's line skin, se here's some ideas for it:
Passive: capped by the enemy: boat floating midair. capped by skarner & team: the ship sinks and lays on map terrain, like a shipwreck on the bottom of the ocean floor, really dark). dark water currents show the spire range.
Q: dark water splash/ tentacles going allout from skarner's body.
W: dark water bubble engulfs skarner/or some kind of frightening coral reef.
E: not sure about it, could be some kind of dark water projectile.
R: tentacles going all out from skarner's tail, entangling the victim.
High Noon Skarner
Half demon-half cowboy can be really fitting of skarner, with scorpions being legendary creatures of the old wild west.
Passive: capped by the enemy: normal sand lair, with some cinder and smoke coming out of it. capped by skarner & team: sand lair with flames going out of it, like an entrance to hell. jericho roses and sand particles at the edge of the spire.
Q: erupts fire and dust;
W: horns appear allover him, and his body is covered in fire.
E: revolver, that's all.
R: skarner unleashes his demonic form, and lunges his stinger to drag the unfortunate soul (literally) in hell.
Void skarner
His claws become jaws, his stinger has an aline-esque appearance.
passive could be some void relic, eggs, spawn, etc.
Riot skarner
Passive: capped by skarner & team: flare gun shoots from the center of the spire, and the flare stays on the floor
His claws are electric staffs, and his stinger has a taser like appearance.
Q: electric shock from his staffs.
W: riot shields spawn and his siren activates.
E: water gun on his back.
R: taser shoots a charge at target, sirens activate.
Dark Cosmic Skarner
really fitting of him, since scorpion is a zodiac sign, but his ult can be a literal blackhole
his passive can be made of nebulae's/cosmic object.
E can be a star being shot from skarner's core
fire themed skarner;
ice theme skarner.
Again thank you and best wishes for your work =)