Caricature theme - ROM at flower bed

Client's brief:-
"Dear Sir,
My name Sean and I would like to do Caricature in colour marker with theme - with background & body for my ROM. (2 persons)
How much is the charges for A2 and A3 size respectively?
Is the picture going to be put on frame or canvas? I would like to showcase it during my ROM period.
The actual day will be on 15th May 2011....


We would like to have the following design
2 persons, the groom and the bride. (See Picture1.jpg as attached)
The bride picture as attached (See Girl1 and Girl2)
The groom picture as attached (See Guy1 and Guy2)
The hand bouquet for the bride I would like to have Calla Lily (See picture2)
Background
Clear blue sky with field of flowers (See background1)
However the flowers in the attached is yellow, we would like to have it similar to the hand bouquet calla lily (white, refer to background2.jpg)
If you have better recommandation in regarding to the color combination for the background, I am open to more suggestions. (Mainly wanted to stick to point 1, clear blue sky with field of flowers)...."