Yeah Skarsgard is a really good actor, I don't think he was the problem and The look wasn't either. for me there's several parts where it loses me, first the love story just wasn't believable, somehow without showing the backstory the original still got across that the two people in the movie where I'm love, in the remake it just came off phoney and forced, hell they could have just made it vague like the original, they wasted so much of the movie on a lovee story that wasn't particularly well told or compelling, it was just like hey were both attractive young drug addicts were in love now! Lol the original soundtrack is a classic and the Remake just doesn't live up to it.
Another problem I have is that they didn't need to make the protagonist eric draven and it didn't need to be a remake, that move alone would make the general audience not compare the movie to the original as much and give the writers/directors more leeway to stray from the original and do their own thing without comparison to a cult classic. It also solves what some see as disrespect to Brandon Lee.
Rupert Sanders is no Alex proyas, the crow, dark city are gorgeous looking films with beautifully crafted sets and elaborate set pieces, the lighting and cinematography in those movies are just too notch so even comparing it visually it's a major downgrade IMHO
The screenplay is also nowhere near as good and there aren't as good compelling side characters as the original, also Eric's characterization is more imo and dry then Brandon lees version, he was more likable and whimsical in a sense, he felt like an undead human vs the new Eric just came off as a guy who can eat a ton of bullets and really likes mascara lol
Overall the biggest failures are the script and direction imo, but not the only place it failed. It doesn't seem to have the passion behind the creative process of the originals or the creative vision, everything just came together(I'm spite of the tragedy and maybe I'm part because of the tragedy on set) and maybe that's another part of it, The Crow is a meaningful movie to a lot of people and Brandon Lee is almost mythical because of it, it was always going to be a hard job to make a Worthy sequel let alone a remake.
If they give it another shot, use a different character, a different story set up, and try to stay as far from the OG as possible.
But that's just IMHO