Do Not Support
Well actually I support it, it's just that there are things which comes before this. Why customize mounts when we can't even customize our own armor and weapon? I always hated this "everybody looks the same" aspect of Shaiya but if some customization is to make, it should be applied to armors and weapons first. And more hair colors/styles and faces. (Hair is not that important since there are helmets, but more color tints would still be nice)
Then about mounts, first thing that should be done about them is that they should be race independant. I know in the world of Shaiya mounts are somehow a part of the race and some of you can object this but when you think about it's just rubbish. Why can't elves ride a horse? No other story states that that I know of! In fact they gave out a horse mount for elves! So it's not against Shaiya fiction anyway. So why are the mounts race specific? I think just making them race independant would be more than enough for the time being.