don't cluster gold, spread it in an established pattern instead to make the level look better in the thumbnail (looks are very important). Also, try to use a variance of enemies, for example, putting the rocket and gauss in the same room, and you could also turn the drone into a seeker drone, that would be more of a challenge. Don't use too many enemies though -- that is very, very bad.
3/5

I liked the middle room.... everything else tho/... well... there was too much open space that was entirely unneccesary. And overall i beat the level the first 3 times i played it in a row going for a good time... That normally means its too easy.