Riot comment: http://boards.pbe.leagueoflegends.com/en/c/general-pbe-feedback/PMqcEf21-pbe-bugs-feedback-thread-debonair-galio
*"Hey guys, we saw that a lot of players weren't super excited about the Debonair Galio skin on PBE, so we've decided to take some time and do what we can to make this skin as awesome possible."*
Well, what did you expect Riot?
Galio is the least popular champ right now, present in 0.35% of games over the last month, and that's across all regions, lanes and normal as well as ranked games, according to LoLDB: http://loldb.gameguyz.com/statistics/0/0/2/0/0/30
Its not even that hes bad or anything, he has a 50% winrate, hes just...well, not popular. I understand that this may be the very reason why you wanted to do a new skin for him, but the thing is, and I know some Galio fans will probably not like this next part (hell, I don't like it, I think Galio is awesome, I own the commando Skin myself), but he is just...well...outdated.
Originally he was probably designed as a counter to AP carries with his passive (Gains AP through MR), but always hindered by the fact that he is melee himself. So even with MR, he can't really efficiently farm against a ranged caster, unless he firstbuilds some mana regen himself...but that again makes his passive kinda pointless.
And ofc there's the fact that Galio comes from a time when AD based, ressourceless midlane assassins didn't really exist. On top of that, hes offering very little to his team, other than an ultimate, which sometimes works in a wombo-combo, but is next to unusable without flash...champions are simply much more mobile nowadays. His ult can also easily be interrupted, so there's that.
So yeah, all in all, no Riot, why would anyone want to buy a Skin for a champion he doesn't want to play? Even Urgot is more popular than Galio right now :D
Please give Galio some love regarding his kit first. Hes not in a bad state, but he needs a rework. Until then, awesome Skin, sorry to see good artwork going to waste.