Just a few things that need to be sorted The General strengths and weakness, should be focused more on physical and if mental you got to give a reason to why it would take toll on them physically while still being able to keep balance. Example, she uses crystal that requires chakra control to be good at it, so she could have good chakra control, but not too much chakra, know what i'm saying? She can't have more than chakra nature, got to focus on one, its better to get to know the one nature than two, plus she is a Genin so she will be quite weak, little knowledge, it will come from the missions she does and training you put into her. For the jutsu you need some links to existing jutsu. Crystal armor should be used on sections of her body, so she can't use it entirely to cover the body. The crystal blade i would allow if you made it that it is slower to generate and less durable, and a bit of fleshing for the history and its fine, We are ready to help if you need any :)