You might be interested in this UK-wide competition which is being run by the Poetry Translation Centre in Greater London. Mother Tongue Other Tongue invites schoolchildren from ages 8 to 18 to write an English commentary on a poem from their first language or, if they prefer, to write a poem in a language other than English. Winners will be invited to an award ceremony and their work will be published on the PTC website.
The deadline for entries is Friday 22nd July. Full details of the competition can be found on the Poetry Translation Centre website.