What you see here is the latest issue in Latvia. From the EUROPA series. Stamps issued on 8th of April. First one is the "Birch grove" with face value of 0.55 LVL (standard price for up to 20g letter to Europe). Second stamps is "Spruce forest" with face value of 1.20 LVL (standard price for registered letter to Europe). 150 000 stamps issued for both types.
Here you can see how FDC for this issue looks like and also the first day cancellation. I have here registered FDC sent on the day of issue.