A-ha, so this is your art! Pointers? Okay, then:

- I've only just started doing this myself, but never underestimate the power of a good brainstorming session. As you say, you started out with wanting to drawer Hikari in a Christmas-themed picture but ended up with just a scarf. May I guess that you leapt straight into drawing this picture without planning? With a plan you may have decided to draw a frame cornered by holly leaves, or had him tramping through snow (and/or have snow falling), or carrying a Christmas present under his arm, or... you get the idea. Brainstorming is great: you just draw rough little thumbnails and see what you get. Or write a list of things - whatever works for you.

- He's a black and white cat, which is fair enough. Perhaps be bolder with your shading, in that case. How dark is his scarf compared to the black sections of his fur? Bold contrast makes for a more attention-grabbing pictures.

- Also, your shading goes in one diagonal direction wherever there is shading. Try switching, or double-hatching in some places.

- You've already got the hang of placing eyes and ears in realistic positions relative to each other. This is great, because I've seen so many artists put these two sets of organs in strange relative positions, with the eye more or less in the cusp of the ear, which isn't how most animals are at all. So good on ya for getting it just right!

- Similarly, I've always liked the visual effect of an eye visible through a thin fringe. Oh, and the fact that his lower jaw is tucked into the scarf is a cute touch. I guess even animals would do that if they wore scarves!

- That's all I've got for now. I guess I could say, 'keep practicing because that's how to get better' but I'm sure you've heard that a hundred times before. I think we all keep hearing it :)