I need to build a very good shopify store.

I am looking to create a successful Shopify store and have a budget of around 250AUD. Primarily, the store will be selling digital products, however I need help with the branding. I want to make sure that my shop looks professional and customers can easily find and buy the digital products I will be offering. I am searching for someone who is experienced in developing and designing Shopify stores that are both visually appealing and easy to navigate. Ideally, the freelancer should have an understanding of creating branding materials and be able to implement them into the store. If possible, I would like the freelancer to suggest methods for increasing engagement, driving traffic to the store, and boosting sales. Furthermore, I would like the freelancer to provide ongoing assistance and advice about optimizing the performance and visual appeal of my store.