Downloading Daily Top 50 of Illustrations on Pixiv.net for further research. 😄
You need to modify pixiv/settings.py. IMAGES_STORE for images and JSONS_STORE for jsons.
To download the images and meta data, simply rum commamnd shown below.
$ scrapy crawl pixiv
OR
$ scrapy crawl pixiv -a start=today -a end=20150101