These are all just guesses, but for the top right: the purple ones look like lavender, the pink ones maybe are peonies, blue is possibly hydrangea? The only one I'm sure about is the lavender.
For the bottom, left to right, it looks like maybe a red zinia, can't tell that green one - probably a fern?, another hydrangea, sunflowers, another fern, impatiens, marigolds, lilys, more sunflowers, next two are roses, then another vase of peonies, and more ferns.
Again, these are just guesses, the pixel art is simple enough that im sure you could get away with calling them any flowers as long as the coloring is accurate. Hope this helps!