Hey! I specialize in clean top down 2D pixel art and modular dungeon tilesets perfectly tailored for your 4 stage puzzle layout. Since you mentioned the majority of the game will be pixel art I can deliver custom game ready assets and animations. Are you aiming for a specific grid resolution like 16x16 or 32x32 for these four stages?
DISCORD: bimplee
MY PAST WORK: https://www.artstation.com/strawblee