The character design is pretty great! But it's a little hard to tell what's going on with the outfit behind her body, too much overlap I think.
In general there's a LOT of overlapping in this design which is making this a little hard to read. The sword over the hat, the foreground petals, lots of near-tangents.
I think the easiest improvement that could be done would be to have her holding the sword at a slight angle, instead of completely straight up. This would help move the sword away from her body and prevent overlapping, and having the sword not be perfectly vertical i think would help give it more depth.
Sorry if this mostly-critical feedback is discouraging, for the most part, this design is great! It's just easier to explain why something is broken than to explain how it works. Keep up the good work though! I know outfits like these can be tricky!