Here are links to patterns for spring and Easter:

Flowers:

Multiple flower patterns by Muskaan: https://tipsaroundthehome.blogspot.com/p/patterns-designs.html

Flat Carnation by Marilee Rockley: https://yarnplayertats.blogspot.com/p/my-free-patterns.html

Summer Bracelet, Daffodil Brooch, Daffodil Pin, Tatted Rose by Jennifer Williams: https://www.cariad-tatting.com/

In Corina Mayfeld’s blog, go to Saturday, April 11th, 2015 for the entry titled Long Time Not Here for a flower bracelet (the example is in black but would be gorgeous in any color). https://cmhandmade.blogspot.com/

Multiple flower patterns including wild pansies and red clover: https://pitsibaa.wordpress.com/free-patterns/

Several beautiful flower patterns including 3d flowers (near the bottom of the list, just keep scrolling). https://danielamendola.blogspot.com/p/free-pattern.html

Multiple leaf patterns and flower edgings on the Le Blog de Frivole found at https://leblogdefrivole.blogspot.com/p/patterns.html

Carnation, Chrysanthemum, Double Fuschia, Primrose, and many other flower patterns by Linda Davies here: https://toptattyhead.blogspot.com/ (list of patterns is in the right column)

I found a realistic fuschia flower pattern on The Tarnished Tatter blog (more patterns can be found in the dropdown menu on the right side of the blog): https://thetarnishedtatter.blogspot.com/2008/08/25-motif-challenge-7-of-25.html

This is a YouTube video from My World in My Way for a layered flower and it has an interesting way of putting the layers together, the link is https://youtu.be/3LCBNuh_7Yk?si=l9E2FdFtMD_AClHn

Easter Eggs, Baskets, and Bunnies:

Easter Bunny, Basket of Flowers by Jennifer Williams: https://www.cariad-tatting.com/

Easter Egg from Wanda’s Knotty Thoughts: https://www.wandasknottythoughts.com/my-patterns/

There are four Easter Egg patterns by Eliz Davis, they are from an old blog and posted as calendar entries so I have to post each individually, here they are:

https://tat-calendar.blogspot.com/2007/03/march-25-beaded-easter-egg-by-eliz.html

https://tat-calendar.blogspot.com/2007/03/march-27-button-easter-egg-by-eliz.html

https://tat-calendar.blogspot.com/2007/03/march-24-easter-egg-by-eliz.html

https://tat-calendar.blogspot.com/2007/03/march-26-picot-easter-egg-by-eliz.html

There are a few Easter Egg patterns that are only found using the Wayback machine, so I have to post links directly:

http://web.archive.org/web/20010410210338/http://www.geocities.com/leen_tats/EasterEgg.html

http://web.archive.org/web/20020414172007/http://www.geocities.com/emmacrew/tatting/egg.html

These patterns are for covering eggs (instead of painting them), they are very pretty. I think the designer is Christiane Eichler:

http://www.tatting.de/dol/frill.htm

http://www.tatting.de/dol/t_eastereggs.html

Here are the links to parts 1&2 and 3&4 for a Carrot Doily (with bunnies) by TattingBlossom on YouTube: https://youtu.be/TwwCyyLsQe0?si=bcdODt2mR_bNzSGo and https://youtu.be/IPRy3rtHG5o?si=1oM_JUH3dx8uWHuC (look at the second one to see what the finished doily looks like)