I might be able to help you, I'm going to submit my game today, and here's my portfolio.
1. https://www.pixilart.com/art/a-heroic-cat-with-a-red-cape-sr5z7bc5b06a6caws3
2. https://www.pixilart.com/art/guard-sr5z8d003fbce7aws3
3. https://www.pixilart.com/art/a-kitty-sr5z4b8ac56c83aws3
4. https://www.pixilart.com/art/something-sr5zf4d7ae292aaws3?ft=user&ft_id=bec2c93e...
5. https://www.pixilart.com/art/a-mayors-office-sr5z9d9ab2b514aws3?ft=user&ft_id=be...
These drawings are my best work. Tell me if you need more information.