[4] In 1880 Schill, succeeding Wilhelm Lotz [de], who had died suddenly in 1879 – became professor of decoration and ornamentation at the Düsseldorf Art Academy; he held this position until the end of his life in 1911.
In Düsseldorf's public life, Schill appeared as a judge in competitions for the erection of monuments, such as the Moltkedenkmal [de].
In the field of arts and crafts, he created illustrations as well as so-called ornamental pieces and vignettes as book decorations from the 1870s onwards.
Until the 1890s, Schill – together with Peter Janssen – developed the decorative furnishings for the assembly hall of the New Academy of Arts in Düsseldorf, which was completed in 1879.
[20] In 1894, maiolica stoves were created in Meissen for the King's Room and the Great Hall of the Society Casino zu Coblenz [de] according to designs by Schill.
Around 1900, Schill created the pinmosaics on the outer facade of the upper floors of the Düsseldorf Academy of Arts.
[23][24] From 1901 to 1902 Schill, together with Josef Kleesattel held the overall architectural direction of the Industrie- und Gewerbeausstellung Düsseldorf,[25] after the first artistic director Georg Thielen [de] had died unexpectedly in February 1901.
Between 1896 and 1908, Schill – together with the provincial conservator Paul Clemen, the academy professors Eduard von Gebhardt and Peter Janssen the Ä. as well as other artists - supported the painting of the Knights' Hall of Schloss Burg an der Wupper.