I liked #24 but not the circle around the building. The grey's were nice but need more shading, possibly add some black. Blue was good but could work with green instead. In other words, light blue - dark blue combo OR greens along with grey and black. Buildings should look a little more residential or free-hand sketch. There's a logo under the "Construction" heading for Harold D Fry Construction that had an interesting image. Good Luck! Thanks!