pixel_player9145076 bottom of this picture.
pixel_player9145076
In addition to what Roeland posted above.
Check out the relevant Wiki page, maps, videos, guides, walkthroughs & hidden gifts/bonuses in these links
You will generally find that the hidden gifts/bonuses are clearly marked on the maps created by Roeland which are contained in these links below
https://wiki.diggysadventure.com/index.php?title=Alice_in_Wonderland
https://forum.pixelfederation.com/diggysadventure/d/188749-alice-in-wonderland-maps-videos-hidden-bonuses-information-more
https://forum.pixelfederation.com/diggysadventure/d/178422-alice-in-wonderland-hidden-goodies/55
https://diggysvideohelp.com/alice-in-wonderland/