Mangroves on the Design Wall

A while back I posted about drawing in the mangroves and contemplated the possibilities  of translating the sketch into fabric ....  well I've been working on the idea and after playing with the possibilities for a while,  I finally have some ideas up on the design wall,   just pinned at this stage ....

It still needs lots of work, but after looking at the black and white version I think its taking shape nicely.  Looking at the value placement in the composition really helps me to see how its working and how my eye moves across the piece .... not always so easy to see in full color!

I haven't yet decided on the final format for the piece .... I'm contemplating whether to add strips to top and bottom .... although this long thin landscape format looks good in this post ...... what do you think?