Hey Jelaw21, loved your project. Unfortunately I don't have any other pixel assets to help you, but I know a free to use asset package that may be useful, developed for Intersect, an open source 2D MMORPG Engine. These assets was made by the community and can be used in any other engine, check this link https://www.ascensiongamedev.com/topic/4173-official-intersect-assets-pack/
I wish you success in your project, and would love to see your project again in the future :) Check my profile in the Ascension Game Dev forum and feel free to contact me https://www.ascensiongamedev.com/profile/1137-kyrise/