Cameron fucked up when he brought in Rodriguez, sometime between his passions sparking for the manga itself and inundating himself in modern CG he forgot the things that made it good in the first place. Looks like the cyberpunk is intact- but in a far less dismal form. Alita is still there, but she's in her teens instead of her twenties and they've sucked out the mixture of pervasive sexuality and immediate violence that made her interesting, no doubt leaving her naivety in an absolute vacuum. The violence in general seems to have been gutted, along with a few important character arcs. Rodriguez took Cameron's ~800 page passion project and distilled a thoroughly R plot into yet another PG-13 sci-fi flick.
Doubly so if they try to work in Motorball, since Volumes 1 and 2 (Hunter-warrior arc) and Volumes 3 and 4 (Motorball arc) have enough coherency and content to make two feature-length films, even taken in isolation. At best, it should only come in at the very end of the first movie. Ido's drinking his depression away in a bar and spots Alita playing through a broadcast, I don't know.
Yeah the eyes are weird but they certainly got a lot of other stuff, like the detailing work on her arms, Egon's super hammer, claw tentacle dude's claws.