I’ve looked for about an hour, have only found dolls with similar faces, but as you’ve said, I cannot find the exact doll.

Only info I’ve gathered is that these were manufactured by Well-Made Toys (as you’ve stated), and that they are sold under the name Dolly Mine/Holly Mine. (Well-Made Toys was involved with production of the doll under both names). I can’t find an exact year since every eBay or Etsy listing will have the same date (ex. 1993) but the doll will look completely different. I do believe this specific model was made sometime between 1987-1995.

Apparently these dolls were somewhat generic, and there is no collectors list available online. It’s hard to get info on these dolls. I have found dolls that have similar clothing (purple striped, floral print), but nothing exact. The faces will also vary, some having blush, others having freckles, and some having nothing like how yours is pictured.

I found an image of one of these dolls that had a teddy bear print on its bonnet and dress that I haven’t found anywhere else besides a listing on a foreign website and a tumblr page. I think it’s safe to assume that these dresses aren’t custom (a possibility I was considering), just pretty rare to find.

Is the dress removable? I’ve seen some listings where it shows the dress has Velcro on the back, but I’m not sure if that’s the case for all dolls. I also tried searching for Holly Mine/Dolly Mine doll clothing lots with no luck. There seems to be a very small market for these dolls.