The amount of material is about right. You really just need to work on the amount of thread and placement of your materials.
When I tie a clouser the bottom color begins after the eyes and the top color is tied in in front of the eyes.
The way the eyes are tied in is correct so it will ride hook point up but it appears that you colors of hair are in the wrong spots. In this case the white will end up being your top color and the purple will be on the bottom.
Great looking first fly! Looks way better than my first one. Great tips so far. I’ve only been tying for about 5 months myself. It deff helps to tye up a pattern 10-12 times before you try another pattern. My number 12 allways looked better than my first in a particular pattern. Welcome to another aspect of the addiction known as fly fishing! 🙂