UPDAAAATE
Made 2 more map nodes today, as well as setting up lighting.
Ran into a problem that i thought was caused by having too many tiles but was actually caused by something else, so one node has really big tiles because i thought that would fix it before i found the real issue and i don't feel like changing it back.
The map chunks so far are the starting area, a platforming bit, and an underground bit where you have to find the snowman in a dark area.
For lighting, i turned down the default ambient lighting and added a directional light as the "sun", as well as adding small omnilights to the player and flamethrower because, well, they're made of fire. I briefly considered having the player not cast a shadow because of that, but it ends up looking kinda weird.
Also i messed around trying to make the grass tiles be random shades of green but once i got it working there was a ton of z-fighting so i scrapped it, ah well.
I have an idea for one more map node already (a maze), i'll have to figure out more because i want at least 3 more, probably more than that
See ya next update!