Oh they do need to have ridges, actually! Sorry for not clarifying that. Ridgeless would be a mutation probably only allowed on customs and/or milestone adopts.
You got the pheno correct, and the fur color is a teeny bit tan for blue, this one might be Lilac. I can totally relate it is impossible to pick fur colors on our color picker, I'm thinking about putting some hex code ranges for people to use as a starting point. But you definitely selected a coat color which naturally occurs so that doesn't need to be changed at all.
Your entry is good but I would like to see a little more complex of a design. You could add some detail to the edge of the white markings maybe? Or use the dodge tool to gently lighten some underparts on the dog, if that makes sense?
Other than that this is great for a first entry. We don't do our genotypes like horses, we type out the entire thing but I am able to do that part for you so don't worry about that at all. I'd like to see another one or two entries to get a better idea of your designs.
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)