Hi giulkau,
I don't think this game requires more music or fxs, but if you have a website where I can listen to samples feel free to leave the link. As long as your prices aren't too high I may consider using them for future projects ;)
Hi, at the moment I'm not home so I can only give you some links of projects I've worked on (not all but let's keep it short)
http://lookcloser.fr/blog-single_gb.html
here's a link to my soundcloud page; it has a variety of pieces that I uploaded, so you can have an idea
https://soundcloud.com/giulkau
For the prices I usually work them out project by project. With the last one I've worked on we agreed on 35 euros per minute of music made (it can change though)
The only thing I can say for feedbacks is everyone was satisfied of the final product in the end :)