For best results book artwork should be created as a high quality image of maximum 4000 pixels. With the file size not exceeding 4MB when uploading the artwork to a content block.
'Understanding' Art work when intended for flat animation, and overlays text on image. Since page layouts are responsive and resize to different devices, interactive art work cannot be created in the same traditional printed book format.
When creating an illustration they artwork need the be created in different layers; 1. Background needs to be illustrated in full and not just around the subject.
2. the subject needs to be grouped secretly together.
c, bellow, we have artwork created on 6 different grouped layers.
- layer 1 (backround)
- layer 2 (boy and girl)
- layer 3 (cloud)
- layer 4 (cloud and sun)
- layer 5 (bird 1)
- layer 6 (bird 2)
The subject and the illustration background should always be created separate, this will allow the book creator to change background opacity making the text visible without effecting the main illustrated subject. At times it might also be the case that the background needs to be one color for the text to flow better over the image. This would be easily adjusted if the illustration/artwork is created in different layers.
Bellow is an example of a multi layered illustration.