Hello Emmie.
Just a quick introduction about me - I've 4 years of experience as a Web developer. I don't only code but I teach coding ( JQuery, PHP, MySQL, Wordpress etc) to others on my popular blog http://youhack.me.
I have checked your competitor site, they are using Nextgen gallery plugin. I can make the slider the way it is on your website too. However, I have a few questions. Will you be providing me the graphic to insert in the gallery?
Looking forward to work with you on this small task.
Regards,
Hyder