If it were me I would charge 88 for it. there should be about 44 servings there and at 2.00 a serv it would come out to 88.00 but that just me.
i was thinking charging 1.85 per serving for the 8" and i was thinking maybe 1.00 per serving for the 12" because that would only be a 2" high cake and the 8" would be about 4". Im not good at pricing this is all new to me.
According to wilton a 12" square by 4" high would serve 48 so i divided that by 2 to make up for the shorter cake. You should still get around 40 or so servings. By your prices it would be 61.00 which is ok, its a little cheap tho. But you charge what you feel comfortable charging.
I looked at your cakes and you could charge 2.00 serv. easily. But like I said its what your comfortable with. Just remember, its not what you would pay but what the customer will pay.
I would charge $6.50-7 per serving. I get 35 party servings based on the dimensions you gave, so $227.50-245.
By my calculations, I figure 40 party size servings at $2 for $80. I would charge a little extra for the fondant accents and bow. Pretty cake!