Scruffy Sled-Dogs

Based on Theoretical Dog GeneticsAs a kid I remember being confused by the logic of dog genetics presented in cartoons. When two dogs had puppies, the boys looked like the dad and the girls looked like the mom. I can only guess that this lack of originality was an attempt to cash in on the new character's resemblance to an older character that had already won people over, but where's the fun in that? Being the animal nerd that I am, I wanted a realistic guide to prevent such blandness.
How to use
Much of this has not yet been proven in studies with real dogs, so if you want to learn more about a real dog it is useful to research the specific breed or likely breeds that are in the dog's background.
Each locus is a spot which can hold two possible alleles out of any number present in the whole species. All together the alleles (genotype) give the final appearance (phenotype). To decide the appearance of offspring, give each parent a full list of genes to describe their appearance and "breed" them by randomly sele
Offspring

Suggestions can be made here Accepting Dog Breeding Suggestions
 
Now that I’m getting more comfortable with the style I’m using with these I thought I’d let people have a chance to make requests.
 
Required:
Purebred x Purebred suggestion, I get to chose markings
2 photographic references, preferably with good detail so I can make out markings
Detailed descriptions of dogs, realistic traits only
or Any male and female already featured in the mixes I’ve done so far https://leonca.deviantart.com/gallery/34655327/Canine-Genetics-Guides-and-References
I'm not taking suggestions for wolves or hybrids since I haven't studied their genetic differences from dogs, and at the moment am not interested in adding that to the work I've already done. Suggestions should also not be extremely similar, to make the results more interesting.
 
Optional:

Learned something new. Didn’t know Irish Wolfhounds came in black.