If you're going for a simple anime look, some of my comments may not apply as I tend to clutter my pixels intentionally.
The first thing I notice when I see your newer Reimu sprite is that her stance seems unstable. Try to straightening out her legs and repositioning her head. Also at a glance, she looks very washed out. Try to bring attention to little details that make the character more identifiable. For example, highlighting the red strings in her detached sleeves or the frills of her skirt. I noticed you have a lot of colours that could be merged with other ones or removed too. What I like to do is look at my sprites at 1:1 and ask myself: can I see the difference the colour I'm adding is making?
I don't like words so I made an edit to further show what I mean:

I organized my pallet in a tree-like structure so you can see how I unified similar colours too.
I don't post too often here either, but I felt inclined to post since it's Touhou.