That's a good point, not only is the base a rehash of an old base that's been used multiple times but it just doesn't work for the character at all. The only character that this base really works for is Twoface, because there are TWO FACES on it. It doesn't work for Harley and it sure doesn't work for Azrael either.
I don't mind that all of the bases are of gargoyles on top of buildings but they need to work with the character they are a part of. Not only that but they need to be different enough that they are unique in their own way. Looking back this has been happening from the very beginning. Noel and Deathstroke have the same basses as well just an angel or grim reaper on the front to make them "different".
This company is doing great work but if they can't pump out new and original bases that complement the character they are representing then it will all fall apart sooner or later. It seems they are making statues so fast that something had to be forgotten. Looks like the bases are where they are cutting corners.
There are exceptions though, I have to say that the Beyond base is fantastic as well the Frank Miller Bats has a very unique base that works with the source material.