Hi Shams,
I think you did a great job of setting up a shade house. Necessity is the 'Mother' of invention I like the bows and since it's yours, you can make it look like whatever you want.
You might try having the water issue working for about a week or more so you can evaluate and make timing corrections. I have to leave my guys for 4 days and have 2 weeks to make adjustments.
i notice that you have many vanda.s.
i would think that you could just hang them in the open;sothat they receive max light, as well as rain, which we seem to get a lot of lately.
i believe humidity is quite high where you live?
just my 2 cts
Very creative solution to your problem. You know I started my orchid house (shack) with one arbor and some solar screening. It has grown into 3 arbors and holds a very crowded 80 plants! Later, if you want to, you can cover the top and sides with solar screen and the rain will be able to get through and the sun will be about a half to 2 thirds blocked. Getting the rain water is a great advantage. You have a great spot there for a really nice greenhouse some day! Sigh! Now to find that big hunky handsome man to build it.... (I know, look for one in Germany!)
You did a great job Shams, just work the timed water issue out and you're all set.
By the way, I've known a number of men who wouldn't have the brain power to think of the idea let alone assemble the arbor. Too busy lifting their beer and bragging about how smart they are. Stay single, and enjoy your life. JMHO
AL
wow! This is great! It rained and the material is plenty porous enough that the orchids got a nice watering And they still get plenty of light. I am thrilled with it