does anyone know where I can find high quality light novel illustrations?
>not necessarily this series
often the website of whoever's translating the LN, if they exist
>>378839
some illustrators also release art books, e.g. the Noizi Itoh artbooks about Shana and about Haruhi, the Rainbow: spectrum * artbooks of Kiyotaka Haimura about Index, the Toradora artbook from Yasu, the Shooting Star * artbooks from Suzuhito Yasuda, etc.
You will get better quality images for some of the light novel pages, but usually the black and white illustrations are smaller that in the novels.