Caspar David Friedrich
(5 September 1774 – 7 May 1840)

Caspar David Friedrich was a German Romantic landscape painter, generally considered the most important German artist of his generation, whose often symbolic, and anti-classical work, conveys a subjective, emotional response to the natural world. Friedrich's paintings often set contemplative human figures silhouetted against night skies, morning mists, barren trees or Gothic ruins. Art historian Christopher John Murray described their presence, in diminished perspective, amid expansive landscapes, as reducing the figures to a scale that directs "the viewer's gaze towards their metaphysical dimension".

https://en.wikipedia.org/wiki/Caspar_David_Friedrich

Abtei im Eichwald  (The Abbey in the Oakwood)
1809 - 1810
Oil on canvas
110 x 171 cm
Alte Nationalgalerie, Berlin
https://smb.museum-digital.de/object/144605?navlang=de

 Arnold Böcklin
 (16 October 1827 – 16 January 1901)

 

Arnold Böcklin was a Swiss Symbolist painter. His five versions of the Isle of the Dead inspired works by several late Romantic composers. 

https://en.wikipedia.org/wiki/Arnold_Böcklin

 

Die Toteninsel III (Isle of the Dead III)
1883
Oil on panel
80 x 150 cm
Alte Nationalgalerie, Berlin
https://smb.museum-digital.de/object/144457?navlang=de

 James Ensor
(13 April 1860 – 19 November 1949)

James Sidney Edouard, Baron Ensor was a Belgian painter and printmaker, an important influence on expressionism and surrealism who lived in Ostend for most of his life. He was associated with the artistic group Les XX.

https://en.wikipedia.org/wiki/James_Ensor

Geraamten twistend om een gehangene (Skeletons Fighting over the Body of a Hanged Man
1891
Oil on canvas
59 x 74 cm
KMSKA, Antwerpen
https://kmska.be/en/masterpiece/skeletons-fighting-over-the-body-of-a-hanged-man

 Utagawa Kuniyoshi
 (1 January 1798 – 14 April 1861)

Utagawa Kuniyoshi was one of the last great masters of the Japanese ukiyo-e style of woodblock prints and painting. He was a member of the Utagawa school.
The range of Kuniyoshi's subjects included many genres: landscapes, women, Kabuki actors, cats, and mythical animals. He is known for depictions of the battles of legendary samurai heroes. His artwork incorporated aspects of Western representation in landscape painting and caricature. He was an excellent teacher and had numerous pupils who continued his branch of the Utagawa school. His most important student was Yoshitoshi.

https://en.wikipedia.org/wiki/Utagawa_Kuniyoshi

Takiyasha the Witch and the Skeleton Spectre
1844
Woodblock print triptych
35 x 71 cm
Victoria and Albert Museum, London
https://collections.vam.ac.uk/item/O73119/takiyasha-the-witch-and-the-triptych-kuniyoshi-utagawa/2

 John William Waterhouse
(baptised 6 April 1849 – 10 February 1917)

 

 John William Waterhouse RA  was an English painter known for working first in the Academic style and for then embracing the Pre-Raphaelite Brotherhood's style and subject matter. His paintings are known for their depictions of women from ancient Greek mythology, Arthurian legend, and the works of William Shakespeare. A high proportion depict a single young and beautiful woman in a historical costume and setting, though there are some ventures into Orientalist painting and genre painting, still mostly featuring women.

 
https://en.wikipedia.org/wiki/John_William_Waterhouse

 

The Magic Circle
1886
Oil on canvas
182 x127 cm
Tate, London
https://www.tate.org.uk/art/artworks/waterhouse-the-magic-circle-n01572

William Blake
(28 November 1757 – 12 August 1827)
 

William Blake  was an English poet, painter and printmaker. Largely unrecognised during his life, Blake has become a seminal figure in the history of the poetry and visual art of the Romantic Age. What he called his "prophetic works" were said by the 20th-century critic Northrop Frye to form "what is in proportion to its merits the least read body of poetry in the [English] language". While he lived in London his entire life, except for three years spent in Felpham, he produced a diverse and symbolically rich collection of works, which embraced the imagination as "the body of God", or "human existence itself".

https://en.wikipedia.org/wiki/William_Blake

The Ghost of a Flea
c. 1819–20. 
Tempera mixture panel with gold on mahogany
21.4 cm × 16.2 cm 
Tate Gallery, London

 Francisco Goya
(30 March 1746 – 16 April 1828)
 

Francisco José de Goya y Lucientes was a Spanish romantic painter and printmaker. He is considered the most important Spanish artist of the late 18th and early 19th centuries. His paintings, drawings, and engravings reflected contemporary historical upheavals and influenced important 19th- and 20th-century painters. Goya is often referred to as the last of the Old Masters and the first of the moderns. He is widely regarded as one of the most influential figures in the history of Western art.

https://en.wikipedia.org/wiki/Francisco_Goya

Witches Sabbath
1797
Oil on canvas 
43 x 30 cm
Museo Lázaro Galdiano, Madrid
https://www.museolazarogaldiano.es/coleccion/obras-maestras/francisco-de-goya
https://museolazarogaldiano.blog/2011/10/18/el-aquelarre-goya-mejores-pinturas-museo-lazaro-galdiano/