Painter's Block

I am not sure if something like this even exists but that's exactly what I am encountering for the Spring II.

Spring II started off without much in mind with a vine of green leaves. Then two pink flowers appeared from nowhere sometime later. And that's when the block resisted the progress.

I am not sure if I want to add more of the small pinks, or a round crimson red poppy or a few buds of sunflower. Or all of the above amid a cluster of cerulean, sap greenish leaves.