This is painted with oil and it is 12 x 24. It is one of the largest paintings I have ever done. I know it is the largest in oil. I used the water mixable oils which might have been a bit easier since you mix with water . It can be watered down like acrylics but I really haven't gotten the hand of blending or layering colors. Anyway, it was fun. I even used rubber stamps for her dress and the background and that works really well. I will try and do more larger pieces.