I have repeatedly thought about fancying-up my daily carry piece. It has pleasing proportions and a nice shape.
I have considered engraving in the gun's stainless steel, since we have a pretty good gun engraver, right here on this island.
I have given thought to fancy grips, after seeing samples of Handmade Grips's gorgeous scrolled inlay work. (They're in Turkey.)
And every time I think carefully and hard about the idea, I say to myself, "No. This is a working gun. It rides in my pocket. It will get banged up. If I have it made into something fancy, I will end up leaving it in our pistol safe, instead of carrying it. That would be an insult to the gun, and a foolish risk to Jean and me."
Well, I met my fantasies half-way: I bought some dyed, layered, impregnated wood as used to make fancy knife handles, and I used it to have simple, pretty, inexpensive, almost indestructible new grips made for it. If I remember correctly, that cost all of about $40.00, including the wood and its shipping, and the gunsmith's labor.
So, now to your question.
I suggest that the flowers be connected by simple, leafy vine work, in a fairly sparse pattern, around the grips' perimeters, with emphasis on places where the line changes direction or rounds a curve. The background might be lightly stippled, but only behind the vines and flowers, not in an overall pattern.
I, personally, do not like checkered grip panels. I find that smooth grip panels, and deeply stippled or checkered front- and backstraps, give me better control over the pistol, and make it easier to reach the magazine catch for reloads.
Get a full-size drawing of the proposed work, and live with it for at least a week. Make changes, if you want to. Then make a copy of that drawing and your changes, and send it in for the artisan to use as a pattern, while you keep the original. That will help you achieve full satisfaction.
I hope you like it.