Graphics
All of that said... I would like to back up something this individual (I'm sorry... I'm lazy, I'm not going to scroll down and get that name

) stated. Yes, this is
entirely personal opinion, but I wanted to do something nice for them
1. Graphic fighting.
In the Adams Family movie, Wednesday and Pugsley are on stage performing a play for their school's talent show. They slice each others' fake prosthetics open, and spray fake blood over wide arcs, including several rows of the audience.
I've got news for you. That doesn't happen. There's no need to have graphic, gaudy displays of blood, guts, and gore. It grosses people out, it's tasteless, it's stupid (to put it mildly), and it's generally regarded as a lack of ability in anybody's book except by those too young, naive and immature to get beyond the 'wow, cool, blood, man!' stage (typically, these people have never had worse than a paper cut themselves).
2. Injury downplaying.
There are exceptions to this... for example, Army of Darkness is going to be released as an RPG soon

However, by and large... including in D&D... losing a limb is a traumatic experience (and, by several official feats involving such creatures, it is traumatic even for those who can regenerate the limb).
If you're struck by a weapon and you lose a limb, no matter how mighty you are, you're going to be affected. You aren't going to stand around in your majestic power and laugh like an idiot. Realistically, you're probably going to spend some time screaming and not doing much else. You might stand around (or, if it's a leg, lie around) in shock. If it's a leg, and you're a bipedal creature,
you are going to fall over. You're going to bleed a lot (but see #1).
3. If you want your character to appear impressive and powerful, behaving unrealistically isn't the way to do it. Playing a God or a godlike being isn't the way to do it. Making yourself immune to everything in existence (or half of everything, or a quarter of everything, or more than one or two things) is simply cheesy. Roleplaying well and acting out the good and the bad things that happen to your character
is the way to do it.