7/25		A sketch executed with what's normally a painting tool (5,7)
8		Real cool primary colour in Daler- Rowney Luma Brilliant Concentrated Water Colour inks range! (3,6)
10		Famous Montmartre street scene painter (7)
11		19th/20th C French artist, Georges Henri, painter of Head of Clown (7)
12		Flanders city associated with Rubens (7)
14		A bishop's staff (7)
15		A wax impression (4)
17		Andrew, US naturalistic artist (5)
18		Alternative to watercolours used for drawing or printmaking (4)
22		Tin-glazed earthenware from France, etc. (7)
23		Ancient Greek two-handled jug, often found in ship wrecks (7)
25		See 7
26		Marc Russian-Jewish artist, famed for his fanciful, humorous paintings (7)
27		Of inestimable value? How very funny! (9)
28		Rejoice (5)

1		Small protruding tower (6)
2		Used colouring sticks (7)
3		Joan, the Catalan artist (4)
4		Unglazed earthenware (10)
5		Term for rust on copper/brass (6)
6		Trompe l'oeil (8)
7		20thC German school of art and design (7)
9		Hidden in yellow, a terrific liquid (5)
13		A darkish neutral colour (6,4)
16		Red colouring (8)
19		Sounds like O'Hara's brilliant red (7)
20		Cut into an engraving plate (7)
21		Used an aerosol? (7)
22		Bored (3,2)
24		Like gouache? That's not clear (6)
26		A model made from a mould (4)