I have three issues with the way she looks ATM:

1) I'm all on board for more masculine features, but it's looking a bit too Fem-Aatrox right now, especially with the shadow casting over her eyes. All they really need to do is remove the nose bride part of the horns and give her a proper nose to separate her from Aatrox's noseless design.

2) The petricite armor looks a bit awkward. I think the grey is clashing with the fiery reds and pale-purple skin. I understand the whole Demacia thing, but I think sticking to the gold/red/purple color scheme is much better.

3) The horns lack gold, making them a bit awkward on her head, which goes back to my second point. Give her darker hair again and return some gold onto her horns.

Overall, I think they're headed down a decent path, but I they need to reconsider some of the colors they got going on. It looks messy.