Custom Twitter Banner Design: Straw Hat Pirates with 'Mugiwara Pirates' Text

We're on the lookout for a skilled graphic artist to craft a Twitter banner for our fan page. The theme is the Straw Hat Pirates from One Piece. The design should showcase 10 characters, their backs turned to the viewer, set against a sky backdrop with the text "Mugiwara Pirates". The banner should align with the style of our attached reference image. It's essential that the design perfectly fits the dimensions of 1500×500 pixels without compromising any crucial details. For consideration, kindly share your previous design samples, especially anime-themed ones. Let us know your estimated timeline for the project, and if you're acquainted with "One Piece", it's a bonus! We're ready to compensate generously for a design that brings our vision to life. Looking forward to your proposals!