Find a piece of art that contains the lavender and other colors of the bedding, and center it over the headboard. Below is how Lavender Field by Paul Laoria might look.

If you wanna accentuate the ceiling slope you could put maybe a triptych but each piece mounted higher to mimic the ceiling. Does that make any sense...not sure how to explain lol. Otherwise, just find a piece you love that’s about 2/3 the width of the bed or slightly bigger...too small always looks bad though

I don’t mean this specific artwork, I just meant something staggered like these, but maybe with three pieces instead of two. Each getting mounted higher as the ceiling gets higher.

I would ignore the slant of the ceiling and the curve of the headboard and find 3 pieces you like to mount horizontally. Not these pieces but just examples:

Thank you. Love all of your ideas. But especially like Lavender field by PaulLaoria. Was thinking I might replace the headboard with a 4 piece wood to match the bedside tables. What are yours thoughts on that? Thank you again

I think your headboard is lovely and a nice curvy contrast to the very linear lines of your lamps. Matching furniture is seldom as interesting as contrasting/complementary pieces.

What did the rest of the room look like? From what we’ve seen, the headboard looks fine...it works if you’ve worked in the curved lines in others spaces in the room. I love the lamps by the way...brutalist-style looking!

Here ya go

Going outside the box here. Your headboard, with its curved lines, is very pretty, and imo is fine on its own. The wall does not need the squared-off lines of anything else between the headboard and the slanted ceiling line. Perhaps a wreath, but not a traditional framed picture.

After seeing the whole room, I would personally put art on the one wall you haven’t shown us (if there’s room I suppose). To me it doesn’t feel like the space above the bed needs to be covered w art

I would choose a piece that has purples, greens, and browns, tying everything together. For me, the lilac artwork is too purple. Anyways, it’s really important that you love what you choose...art is very personal!