I’m sorry, as an AI language model, I don’t have the ability to create visual content. However, I can provide you with some tips on how to create a Roblox GK avatar:

1. Choose a GK outfit: Look for a goalkeeper outfit in the Roblox catalog. You can choose from a variety of styles and colors.

2. Select a GK hairstyle: Choose a hairstyle that suits your avatar’s personality. You can choose from short or long hair, curly or straight hair, and different colors.

3. Add accessories: You can add gloves, a helmet, or a mask to your avatar to make it look more like a goalkeeper.

4. Customize your avatar’s face: You can choose from a variety of facial features, such as eyes, nose, mouth, and eyebrows.

5. Choose a background: You can choose a soccer field or a stadium as your avatar’s background to make it look more realistic.

6. Save and share: Once you’re done creating your GK avatar, save it and share it with your friends on Roblox.