DnD Homebrew: Foxkin playable species

Your Dexterity score increases by 2.

In fox form your size is small. In foxperson form your size is either small or medium.

In fox form your walking speed is 45 foot. In foxperson form it is 30 foot.

In foxperson form you can speak, read and write Common and one other language of your choice. In fox form you can still understand these languages but can’t speak. In addition, while in fox form, you gain the ability to speak with animals as though you were using the "Speak with Animals" spell.

In your fox form, your small size and agility grants you a natural armor of 12 + DEX.

In fox form, your appearance resembles that of a regular fox. In foxperson form you are humanoid with fox ears and a tail (fur?).

You can see in dim light within 60 feet of you as if it were bright light and in darkness as if it were dim light. You discern colors in that darkness only as shades of gray.

You can transform into the form of a fox at will. The transformation takes 1 minute to complete in each direction.
In your fox form, you gain natural armor, a bite attack, and the ability to speak with other animals.
Like a wildshaping druid, you choose whether your equipment falls to the ground in your space, merges into your new form, or is worn by it. Worn equipment functions as normal, but the DM decides whether it is practical for your fox form to wear a piece of equipment. Your equipment doesn’t change size or shape to match your fox form, and any equipment that your fox form can’t wear must either fall to the ground or merge with it. Equipment that merges with your fox form has no effect until you leave the fox form. You also cannot use items or mechanisms, unless they can be operated with paws.
Also similar to a druids wildshape, your fox form limits your ability to cast spells. You cannot cast new spells, but retain concentration on any spells you have already cast, and are able to use actions of ongoing spells, such as those of "Witch Bolt" or "Call Lightning".

While in your fox form, you can use your bite as unarmed strikes. These attacks deal 1d6 + STR piercing damage, instead of the bludgeoning damage usual for an unarmed strike.

While in your fox form, you can use your claws as unarmed strikes. These attacks deal 1d6 + DEX slashing damage, instead of the bludgeoning damage usual for an unarmed strike.