The answer is artistic. This is because artistry is in its original form, just like alternative music. It's not going by the crowd and only being influenced by how you feel. Hence, art.
Ancient Egyptian art is the painting, sculpture, architecture and other arts produced by the civilization of ancient Egypt in the lower Nile Valley from about 3000 BC to 30 AD. Ancient Egyptian art reached a high level in painting and sculpture, and was both highly stylized and symbolic. It was famously conservative, and Egyptian styles changed remarkably little over more than three thousand years. Much of the surviving art comes from tombs and monuments and now there is an emphasis on life after death and the preservation of knowledge of the past. The wall art was never meant to be seen by people other than the afterlife for when they needed them.
Artworks are grouped into periods or styles based on similarities that they share, for example a similar time of creation (for example, Medieval), a similar use of technique (for example, pointillism) or similar subject of depiction (for example, portraits).