You dont like Serana's eyes? They're beautiful! And amazingly hypnotic. I like how they glow in the dark. The original were ok, but nothing special, assuming you mean the old vampire eyes. And whats wrong with her personality?
I like her eyes, but the ones you linked to were not the ones she has in the game. Those were modded. I do love the female vampires eyes.
Thank god, no she's not. That would've gotten old, fast. I know some people don't like her talking about her father and her "daddy issues". I don't see why. Its not like she's complaining about little teenager things like not staying up late or something. Her father AND mother basically peer pressured her into screwing a daedra lord to be a vampire, and ordeal she may or may not survive, then afterwards treated her like an instrument. Her father saw her as an instrument to bring about his crazy ambitions, and was willing to sacrifice her life to bring down the sun. Thats a pretty good reason to complain about her family.
Serana. Is. A. Vampire. So she get pressured into being Molag Bal's plaything, but in return she is given immortality, immunity to diseases, enhanced powers both natural and supernatural. If anything, she should of truly saw her vampirism as a gift. What gets old is the regular whining characters like Kodlak or Sinding who hate what they become because they became too attached to their human shells.
I was actually surprised to see that Dawnguard had a story similar to my female vampire character. No lie. Both my character and Serana are pureblooded, though they became slightly different and are of different strains. They both have black hair, orange/red eyes, etc and both had vampiric maternal and parental issues

. Only different is Serana doesn't commit patricide out of hunger for power, nor does she stab people in the back, manipulate the masses or deceives her way throught he ages. I guess I dislike Serana because she doesn't fit what a vampire should be. Was she used? Yep. What she a tool? Yes. What should she have done? Play the game better. Use her parents as tools, find a way to manipulate them, plot against them, destroy them and take over the Volkihar coven. Vampires are backstabbers by nature and deceitful.
Yes, Harkon was a fanatic and an extremist. He wanted to plunge the world into eternal darkness and bring war on all of Tamriel, Serana definetly should not be like him. Still, she's a vampire, she feeds. That is what she is suppose to do. Mortals are cattle, plain and simple. A hungry lion would never play patty cake with a sheep. Ever.