seems a bit out of focus but would be cool

You don't usually see a lot of bulls together.

Might be a cow.

Might be a cow.

It appears to be a bull....cows normally have teat's?!?

"No other objects are allowed in your photo", I thinks trees and grass qualify as other things.

come on now! "other things" can be the white poster board you use as a background or the black fabric you use to place your subject on. I think they mean "other things" as in people, flowers, electronics, animals, plates, beer cans, etc. etc.

I agree with k5683, this is clearly a picture of a bull, not a picture of trees etc.

It is rare to only see one seed, but unfortunately because the seed is in the watermelon it is impossible to get a clean shot.

I would suggest staging the shot a bit, taking a seed and placing it on a seedless slice of melon. This way you can get a sharp shot of the seed and the shot will be a lot better. If you havent eaten all your props yet, give it a go

that is kind of neat but I didn't know it was watermelon until RayTedwell said so.

the focus is not really on the sand, it is kind of blurry

I agree author, it's a nice idea but the image should focus on the sand and not the fibres around it. Maybe taking another picture of the same subject would be the best idea.

and choose a better bg for the subject, one not so busy!