For #illustrations

1. Sketchvalley
2. Wham
3. Craftwork
4. Blush
5. Ouch
6. Open Doodle
7. Isometric Love
8. Drawkit

For #colors

1. coolors.co
2. colormind.io
3. colorhunt.co
4. khroma.co
5. curls.com
6. colors.lol
7. color.adobe.com
8. pigment.shapefactory.co

For #icons

1. Material Icons
2. Flaticon
3. Eva Icons
4. Noun Project
5. Iconscout
6. Icons8
7. Iconset
8. Remix Icon