Your Intelligence score increases by 2. +1 to Dexterity, Wisdom or Charisma.

Gnomes mature at the same rate humans do, and most are expected to settle down into an adult life by around age 40. They can live 350 to almost 500 years.

Gnomes are most often good. Those who tend toward law are sages, engineers, researchers, scholars, investigators, or inventors. Those who tend toward chaos are minstrels, tricksters, wanderers, or fanciful jewelers. Gnomes are good-hearted, and even the tricksters among them are more playful than vicious.

Tiny gnomes are around 6 inches tall.  Your size is Tiny.

You are limited by your stature.  You can lift a max of 10 lbs and carry a max of 5lbs.

You are unable to wear armor, but you are tiny and hard to hit.  You gain an unarmored bonus of 12 + dex

Your base walking speed is 10 feet.

Tiny gnomes also have an innate ability to stick to surfaces.  You can walk on any surface at a speed of 10 feet.

Accustomed to life underground, you have superior vision in dark and dim conditions. 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 can’t discern color in darkness, only shades of gray.

You have advantage on all Intelligence, Wisdom, and Charisma saving throws against magic.

You can speak, read, and write Common and Gnomish. The Gnomish language, which uses the Dwarvish script, is renowned for its technical treatises and its catalogs of knowledge about the natural world.

You gain the ability to speak with animals at will.

Proficient in Animal Handling

You are a dangerous foe to face while mounted. While you are mounted and aren't incapacitated, you gain the following benefits:

• You have advantage on melee attack rolls against any unmounted creature that is smaller than your mount.
• You can force an attack targeted at your mount to target you instead.
• If your mount is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

As a gnome intune with nature you have a mount that is a small flightless beast of CR 0.  You gain proficiency with Animal Handling and the Mounted Combatant feat.

At level 6 you can choose to tame a new mount with the ability to fly.

Due to your rare size, you were brought up to be self sustainable with your needs.  Choose one tool proficiency from the following: Tinkers Tools, Smithing Tools or Woodcarvers Tools

You're tiny, so your weapons will be tiny as well.  Tiny weapon damage die types are adjusted as follows:

1d4 / 1d6  - 1 dmg

1d8 / 1d10 - 1d4 dmg

1d12 or higher - 1d6 dmg