Not too crazy about this one but it's not too bad. With some effort I could probably find what species that right wasp is but right now I can't remember. The other is an Ammophila of some sort

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A small pixel art stamp with a sandy coloured background, the word "solitary" across its diagonal and two solitary wasps on either side. One is black with a long, narrow, red-tinged abdomen and curly antennae. The other is more squat and very colourful, with stripes of green, yellow and red on its abdomen, an iridescent blue and green thorax and a green head with red eyes