Hi!! I haven’t been doing card edits for very long so as of now I am not sure how to provide more detailed tips ^^’ but I’ve found that the thickness of your pen makes a REALLY big difference!! Starting off really thin and then making it thicker as you go or going over the lines already on the card not the ones you’ve added yourself can help to make it all look the same and the thing you’re adding doesn’t stand out as much on its own (hopefully that makes sense ur welcome to dm me if u need me to explain) starting off with 3* card edits is a good place to start because you don’t need to worry about lighting and the shading is pretty simple! For 5* cards shading, I normally colour pick from the original hair colour and look at where it is on the colour wheel (like where you can see what makes up the colour you’ve picked) and move it to the colour I want so the shading should still be similar? Line weight for the hair lines can be really important too from feedback I’ve received from others myself, as long as you have fun with it that’s all that matters 🫶