Weird question but what did you use to make the visuals for your game? I would assume that the character animations were made in adobe animate (as that's the only form of vector graphics GMS2 supports in sprites besides Spine), but if you wouldn't mind I'd like to know just a bit more about your method (especially in regards to environments), speaking as a fellow GMS user who wants to avoid ye olde pixel graphics artstyle.
Obviously you don't have to answer if it would be too revealing in regards to your work methods.