Hello there! I like the style and the colors, though I feel like the hair could use some more shading/highlights. Btw, I really liked the katana. Nice work, as always! 
Random question: how much time do you think you usually spend per daily art? I am thinking of challenging myself to work on pixel art more often, but time is always a problem for me...
thank you so much! :D I agree, it does lack some depth 3: thanks for pointing it out ouo
I try to make use of what time I have after work, and a bit of my break time. I'd say I spend roughly 2-3 hrs per piece (sometimes 4-5 it depends). If you have a twtter you should follow @Pixel_Dailies and participate :D they set a different theme everyday! It's great practice and you can learn from all the good pixel artists there ouo and if you want bigger challenges you can participate in the weeklies over here too.