You can see you have iced eggs? You need to move each free egg, down its respective columns so that it engages with the iced eggs to free and change them until they can make a row and make your dragon.The easiest way is to keep your egg in the column its in, but don't panic if it moves. You can use shovels to crack eggs too (as in the video)
Once they are clear, make combinations, +5 rows, cascade your crops all to add points on so that you don't need to use as many moves to gather crops. Handy if you like to collect stars on each level.