All I need to say is just Whoa! This is fantastic! It's Amazing to see that your hand drawing turned into a Brilliant Art work! The colors are Great, the character design is the best! The shading you have done totally makes it look like an actual anime! Also the neko ears and tail is so cute it reminds me of miyuki from lucky star!
To be honest I can't see what you need to work on... (I mean that it's so Amazing that I can't see any faults!)
All in all Well done it is a beautiful artwork and you should be proud
Woah!! Wish you did a video tutorial~ it looks amazing! I wish I can make my drawings look so vibrant i have a tablet and I have no idea how to use it. Either that, or I have no idea how to draw on Photoshop. It takes so long!!
WOWOWOW this is so amazing! how long does this take?!?!? and what's the posters on the wall of? can't see em clearly xD i think it's SAO and K Project? yah def K and i think i see kirito, asuna and yui and that..pink haird girl. lol. so amazingly detailed!