The successful young artist will also be invited to the Senedd to meet the First Minister and will receive a signed, framed copy of their winning entry.
Bydd yr arlunydd ifanc llwyddiannus yn cael ei wahodd i gwrdd â'r Prif Weinidog, a bydd yn cael copi wedi'i lofnodi o'r cerdyn mewn ffrâm.