Not sure if I said it already, but I'd like a couple more flower Pokemon that aren't generic flowers or the Rafflesia Arnoldii (or patterned after/look-alikes of the Rafflesia).
Right now I can only think of Sunflora (sunflower, walking piece of crap), Cherrim (Sakura) and he Roserade line (Roses) and sorta Hophip (Dandelion, but doesn't really look like it)
And a lot of the "generic" flower Pokemon have pink/red blossoms. We are on the Switch now, and the designers can afford more than 12 aquarelle pencils so we can get a bit more variety and colour here.
I'd like to see, at some point: Violets, Snowdrops, Waratah (Grass/Fire) Lotus Blossoms (Grass/Water), Lillies, Lilac, Cornflowers, Poppies, Bluebells... There's a lot I'd like to see.