The acrylic hard layer is even and, therefore, ideal for the nail polish application. As for gel nails, they are as strong as acrylics, but they appear more natural. Acrylics need UV light to harden.
In this post, you can see the Short Coffin Shaped Nails designs. Here are the coffin acrylic nails matte, coffin nails short & long, glitter Coffin nails.