Thank you both!
We do already show a kind-of-animated white swing effect for most of the skills – perhaps they’re not visible enough? I guess we could also wiggle the weapons a bit on the characters, Prison Architect style, if you think that’d help – although some enemies don’t carry weapons (e.g. werewolves, ghouls). I can play around a bit with that over the weekend and see how it feels.
Regarding decals sticking around, though, I’m not sure what you mean. What decals we have (blood on ground and weapons, bones on the ground) do stick around forever.