>>1862730>>1862817Alright, you definitely shouldn't have worked on an image like this. This is very messily painted, requiring a lot of improvisation, especially in the hair.
For starters, you CAN NOT be lazy with hair. All hair must have sharp V shape endpoints that flow in certain directions. You have basically none of these shapes, and have removed many of the hair details that fade at the tips. This creates a very poor set of hair, and gives little emotion to the character. You also neglected to add the ears. The second issue with this image is that there is a lot of internal highlighting within the hair that you have to improvise. If you just do the base color of the hair as is, the image losses a lot of detail. You have to look at the original and play with it until you create something that you're comfortable with.
There is of course other issues, such as color peeking around the hands. You also colored the front of the hand a different color than the arm, even though it is all skin coloring. You also didn't color the other hand as the skin color, and instead melded it with the dress. The design in the middle of the dress is completely off-centered, and is not accurate to the original. The black part of the dress should be the same color all around the image. The colors in general need to be adjusted, given it lacks saturation.
Honestly, this image is much too difficult for you to do at this time. Stick to easy anime screenshots, preferably those focusing on the face and hair. Once you do a good 4-5 of those, then you can move on to more complex fanart images.