No, Scarlet Slipping is not a goth artist, because they play Neoclassical Darkwave/Electronic, while goth music consists of Gothic Rock and its derived genres, like Deathrock, Darkwave, Ethereal Wave, and Coldwave.

However, their music does show some goth influences and could be considered adjacent to the goth scene.

It is important to note that while this artist is not goth, they did make goth music as part of acts like Trance To The Sun.

If you want to dive into the goth music scene, some of the bands that might appeal to you if you enjoy Scarlet Slipping are Dead Souls Rising, Diva Destruction, and Switchblade Symphony.