WPcocktail develop some theme but they are very beautiful
Elegance – Responsive Portfolio WordPress Theme
Elegance is a Premium WordPress Theme with fully responsive and retina ready design. Elegance comes with powerful admin panel and extremely flexible gallery system. You can adjust colors for each post/page, set custom backgrounds, custom size for portfolio thumbnails and many more. This theme fits well for designers, photographers, media agencies, restaurants and any other who wants to showcase their portfolio in elegant way.
Feather – Elegant Premium WordPress Theme for Business or Portfolio
Feather is a clean, elegant premium WordPress theme that comes with responsive design and powerful Admin panel. With the variety of color options you can drastically change theme appearance from Admin panel. Besides you can translate it to any language or even make it multilingual.