To start, I love the character's design. She's unique without being over-the-top or weird. The fur markings are lovely, especially on the tail, and her accessories are delightful. My favorite is the necklace, but her top is very cool, too. The shackles on her ankles, together with her subdued expression, hint at a story, so this piece overall seems to have a lot of meaning instead of just looking like a pin-up.
And I adore your coloring style! The finely textured detail on the character contrasts in a lovely way against the more painterly approach of the backdrop, which helps keep the focus on Dina while making the piece more well-rounded. I really admire the foliage behind her. It's awesome how it becomes more pale and less detailed with distance, adding more depth to the piece.
Overall, the professionalism and skill here are just... Incredible. I love it! Keep up the amazing work.