Sorry to msg like that, your Picnic project has been frozen while I was typing to you.
I would take this job because I had experience in modelling an ecological park in France, and I find it quite interesting.
I would like to have more info about it.
I guess you need good textures in your render. I can provide also a video for a money plus to arrange.
I wonder if you have already a 2D concept. Else we should add some days in order to create it before starting.
You can find a video of mine on Vimeo, if search for my name.
I hope to have news soon, so I can show you more jobs.