@Yin:
I really suck when it comes to providing some feedback, don't mind me.
I really liked almost everything about the first screenshot but that lantern placed on the wooden house just doesn't seem right, at least to me. Meh, I could be wrong there. :P
As for that second screenshot, while I like the map, there are a few objects or tiles which doesn't fit in with the rest of the mostly rtp map.
For the third screenshot, sorry for the vague feedback, I liked pretty much everything. XD
I also notice what appears to be some inconsistency with the shadows of objects and trees. The shadows in each screenshot are different from each other.
In the first screenshot, the shadows look translucent (okay, cool).
In the second screenshot, the shadows are totally grey.
In the third screenshot, the shadows look like they have a halftone pattern and also translucent.
----------
@Charlie Lee and Yin:
The untitled arcade-like game's gameplay is like this:
The player's ship has four different colors it can transform to. Red, Blue, Green and Purple.
The enemy ships represent a certain color.
The player ship has to collide with the matching color enemy ship (ex: red to red). If the player uses a different color and rams into the enemy ship (ex: red to blue), the beam below loses a health point (which you'll see when it changes colors) and you're back to your restart point.
You also cannot let the enemy ships get to the beam below or else it will lose more health. The enemy ships will also increase in numbers whenever you start achieving a higher score (you'll be able to go to the thousands!).
Each colored ship will also move a certain way. :P