Honestly I feel like you've lost depth making the wings lighter, especially the one closer to us as it was coming out towards the camera. The texture does suit it but I think you should bring that darker value back to it so it doesn't blend into the mid ground as it currently is. A lot of the nice bits of grass and rock in the foreground also gave it a bit of variety and description for where they are, imo I don't think omitting those added to the piece. Either way, good job with the progress so far!