3D Model For Game Figurine Review / Edit

Hello, I am looking to have pieces for a game 3d printed. I have had designs made and I have a printer I'd like to work with, but the models are failing some automatic DFM analysis checks for: - Thin walls - Intricate details - Mesh integrity I'm looking to use FDM process and PLA material. I'm looking for someone to review the designs and edit them so that they can pass the DFM checks and be successfully printed. I'd like to retain as much of the look of the original designs as possible. They can be increased in size, but only slightly. Some detail loss or changes are okay if the look stays good and they pass the check. The basic description of the game piece is in three parts: a rocket ship (three kinds, each with wall thickness, details, mesh issues), which sits on a base (a smoke plume) which sits on a circular chip. The smoke plume and chip have no issues in the analysis. I believe the wall thicknesses need to be at least 0.8 - 1.2mm thickness. I believe the printer uses a 0.4mm nozzle. I have included one of the .stl files for a game piece as reference. There are three game pieces of similar style that need work. I can provide files for all the ships as well as the other two pieces once the job starts for reference. I can also provide a design document for the pieces. This is a time sensitive request. I'd like to get these pieces to the printer as soon as I can. Thank you!