The visuals are outrageous; instead of filling the characters hair and clothes with flat colors, they are windows to detailed backgrounds of their own. It's trippy.
The CGI for the mecha fights is... unimpressive. Luckily there isn't that much of it.
The main themes are love and revenge.
The Count is driven to get revenge for his betrayal, but part of the betrayal was because Morcef loved Dantes' fiancée, Mercedes. The question from early on was if she ever stopped loving him, or just moved on because he was gone.