Some of the bricks on the oven look too detailed. Try to avoid giving brick a shadow and a highlight, as it creates an overwhelming about of detail. In particular, bricks in shadow should generally be fairly flat (no highlights), since there's less light hitting them. You could also reduce the contrast on all the bricks a little, e.g. by eliminating the brightest highlight colour.
The same is true of the tiled roof, it feels too detailed. Keep things simple, add detail only where it's important to avoid distracting the player.
I like that you added some detail to the silhouette of the bricks, but I don't think you went far enough. Those single-pixel dips between the bricks can look like noise, especially when butting up against other objects. Try to have 1-3 pixel gaps, and maybe even have some spots where the gaps are deeper than a pixel, or have some bricks be thinner and not reach all the way to the edge.
The bricks on the slanting, shadowed part of the oven should probably be slanting rather than horizontal.
Will the roof and the oven always be together? If so, it would be a nice touch to have the roof cast a shadow on the oven. The slanting surface would make for an interesting shadow, and it would make the scene feel more cohesive.
The highlights on the barrels feel a bit flat since they have horizontal tops and don't "wrap" around with the perspective.
Lastly, watch for tangents. If you have every prop reach the edge of its tile, you'll have a lot of objects line up, which can hurt the readability of the scene and just looks very artificial. Have some of the smaller props not reach the edge, so that they're always a pixel or two from nearby props. Maybe have some of the props be rotated rather than perfectly aligned to the tile grid, to make the location feel more organic.