Wow ibot!!!!
You nailed so much of the feel I'm going for on your first try. . .awesome!
These are my thoughts: Could you change the text to say "Gorp Bar" and perhaps play with the sun concept behind the tractor? Maybe some experimenting with making the sun bigger, trying different colours. . fading. .. maybe even creating a multi coloured sun?
Don't change anything on the tractor and the wings. . they rock!
Fantastic job!
Colleen