That's good to hear :) and no, I can't think of anything. The only things I'm concerned about (especially when it comes to over-powered characters) are things I plan on adding in the future and that won't be for a while since I haven't been working on my Naruto fanfiction quite as much. :/
no, unfortunately i'm not that artistic -_- the best i can do is take images from the series and change them around. that or i use games i find online.