Hey Katrina - Trust you must be doing great!.
Thanks for putting your requirement in crisp way. I understood that it is your first application and you have a written scope.
I will be very frank here, I don't have such portfolio link ready. But I want to tell you that I have been in this profession for around 7 years, doing all this stuff - scoping, writing functional specs, wireframing and designs. Hence, I have attached some of my previous work samples which will give you clear idea about my capabilities.
My approach for your job will be:
1. Going through the written scope that you have currently.
2. Based on my experience, I might give you suggestion for improvement (if required and on your consent)
3. I follow the user stories pattern, I will try to understand who all users will be using the application and based on their behaviour I will be working on the Information Architecture of the application.
4. Once the application architecture is laid out, I will be working on the user stories.
5. Once the user stories are done, I will be woking on the wireframes.
6. Once the wireframes are done, I will get the design part done.
So basically, I will be diving the job in 4 parts:
1. Requirement Understanding
2. Information Architecture
3. Wireframing
4. Graphic Design
The examples that I have attached, I will request you to go through them in details and get the flavour of work that I do, because I take passion in what I do!
I have attached plent of examples, so kindly look!