Another Tractor Cake

Normally, I won't repost similar looking cakes, but I made some detail changes to my tractor when I made it for another little boy, so I broke my rule.  It is still a yellow cake with white, green, black, yellow, and orange buttercream icing.  I wrote the "Happy Birthday" message and the #3 differently on this cake, and I'm not sure which way I like better!  The cost for this cake was:
Icing: $2.55 x 1.5 batches = $3.65
Cake: $1.93
Wrapping: $4.88
Labor: $6 x 2.75 hours = $16.5
Total: $24.59