Fun with MatrixPlot: Pixel Art

MatrixPlot is great for pixel art.

jp=MatrixPlot[pixelart, Frame->None, ColorRules->{0->White}, ColorFunction->#, ImageSize->90, Mesh->All, MeshStyle->LightGray] &/@ Append[ColorData["Gradients"], "Monochrome"]; GraphicsGrid[Partition[RandomSample[jp],8],Spacings->0]


ColorRules can be used for the better result, e.g. ColorRules -> {0 -> White, 1 -> Yellow, 2 -> Orange, 3 -> Pink, 4 -> Red}