The Best Russia Can Achieve?

The Russian military is now defending a much shorter front and it has easily doubled the forces they had in Ukraine back in October. I very much doubt that Poon is willing to accept something less than the Donbass, which she sort of digitally claimed is the original goals of this entire invasion. So I'd rather doubt that they can capture it than yes, especially based on how they've been performing. But it seems like perhaps the best Russia can accomplish.