Sweet shrimp ceviche Japanese style with yuzu and wasabi 甘エビの和風サビーチェ

We got a shipment of fresh tuna, amaebi and other "goodies" from Catalina. The 6 amaebi we received were the most perishable product in the shipment. After eating two as sashimi and shrimp head miso soup on the day the fish arrived, we polished off the remaining 4 the next day (they were large and there were only 6 per pound). I cooked the heads and shells to make a broth and will use it as a soup later. I just came up with this dish especially since the amaebi were a bit larger than usual. I removed the head, shelled, deveined and cut the amaebi into small chunks. I then marinated them in yuzu 柚子 juice (from the bottle) with a pinch of salt, finely chopped scallion (white part), small dices of mini-cucumber. I served this on a bed of baby spinach (dressed lightly with my honey mustard vinaigrette) and thinly sliced cucumber. I garnished it with slices of skinned Campari tomato and a good size dab of real wasabi on the top. Just before serving, I poured the yuzu shouyu sauce over the mixture (I used yuzu shouyu from the bottle--the one I used has a nice kelp flavor as well). The good amount of real wasabi I used really makes this dish. (The real wasabi is not really hot like the other kind which contains mostly western horse radish).  The yuzu and wasabi combination goes very well with sweet amaebi.