Upload & Sell: On
First, a warm welcome to FM!
I don't know that I can add much new to the comments of others, except that the blocked up areas jump out at me. My limited experiences suggest bright yellow and bright red are extremely difficult to render properly - drive the sensor nuts. Yellows are way over the top here.
Only you can judge if the final looks works for you. That said, for pay, remember the only thing that matters is what the client likes, your opinion does not count.
And, if you pursue this beyond a casual area of interest and hobby, you should hone post-processing skills to achieve optimal results. I don't know what you used, but I think it safe to say out-of-camera or Picasa will not suffice over the variety of conditions you will encounter. And, as already mentioned, there are many great cameras out there, research them, select one you think will work for you, and above all, learn to use it well - practice, practice, practice. Otherwise, you'll fall into the money pit as have so many before you (myself included) - the person behind the lens produces the images, not the gear itself.
Again, welcome, please share more images with the community. We all learn form each other in a friendly, constructive, and supportive environment. Hope I don't come off as preaching, but these are suggestions and opinions from my experiences posed for your consideration
<later> If you are in the market for a small, compact, killer camera, might I suggest a used Fuji X100s? Not the eco-system required for a DSLR, takes excellent images - check it out on the web.