First up, we have such a pretty card made by Debbie Naylor. Hope over to Debbie's blog here for more details.
Here is Jennifer Rawlings' take on a spring card. The black certainly allow these vibrant colors to take center stage! Take a further look at this project on Jennifer's blog here.
Finally, we have Rachel Yurkanin's lattice card that definitely makes you think Spring. Visit her blog for more information.