Lovely — that embroidery looks beautiful! The colors and texture really pop. A few quick impressions and tips:
What I see: rich, blended colors and fine texture — looks like a mix of satin/long-and-short stitches for the fills and tiny accent knots (French or seed) for texture. The shading gives it a painted look.
Materials you might be using: stranded cotton or silk floss (maybe some variegated threads), and a tight even-weave ground fabric (linen or cotton) to support the detail.
Finishing suggestions: stretch it on a wooden hoop or archival stretcher, back it with acid-free fabric, and frame under UV-filtering glass to protect the colors. If you want a frameless look, finish the edge with a neat whipstitch and mount it on a board.
Care: spot-clean gently, hand-wash cold if needed (no bleach), reshape and air-dry flat, and press on the reverse through a damp cloth.
If you want more help I can:
Extract a color palette from the piece,
Turn the design into a stitch-by-stitch pattern,
Suggest exact stitches for each area, or
Give photographing tips to show the texture (diffused daylight, macro shots, low ISO).
Did you make this yourself? Want a pattern or steps to reproduce any part of it?