Sayaka Pose Practice 10.5 + Contest reminder

A pose practice that I didn't finish for a reason I don't remember... anyway, it's really hard for me to continue with unfinished works after a while. I prefer starting a new one from scratch rather than continuing on "old" work. This one had pretty good potential though and the three poses are pretty neat, so I decided to label this "10.5" and submit it.

My intention with this pose practice was to create possible scenario ideas for my contest. There is less than three weeks to the dealine, here is the contest information btw:
Contest: Design a friend for Sayaka! [EDIT2]!!!!!!Hello there people!
I got my tenth pose practice featuring my original character Sayaka Tsuchimiya done just recently. I've drawn her with her sister Sachiko, traveling with a random gentleman and even dancing with Anon, but I haven't really drawn her with her friends. I just realized that she doesn't really have any friends for the time being, with exception of Jill as seen in this picture: http://fav.me/d7psps4
Thus I decided to run a contest for adding a new character to the pose practice series. I will go trough the details of the contest information. Please read it thoroughly before taking any actions. Opinions about the contest information are welcome and changes will be made according good, constructive suggestions.
0. Contest theme and changes to the contest information (clarifications added 18-7-2015. Changes made 19-7-2015!!!)
1. Sayaka bio
2. Submission format and rules
3. How to partic

I came up with various ideas that Sayaka could do, although she isn't necessarily good at doing anything. What I find fun about Sayaka is that even I don't know what she can or can't do until I start drawing. For pose practicing purposes, there are many things I can make her do while also defining her as a character. She is rather average all around, but who knows, maybe she has played trombone in her childhood.

When I was drawing the third pose, trombone just came first in my mind, totally random (which made me watch "Hibike! Euphonium again). I hope to see such randomness in the contest as well. If you are participating (or still planning to do so), relax and let your thoughts fly.