Fully logical, but very tough! Thanks.

Great challenge, really good, thank you.

Great one. Really enjoyed it.

Good challenge - interesting subject - thanks.

Thank You.

Great puzzle. and added bonus of encouraging me to google & find out about slipper orchids. many thanks.

I enjoyed doing this and it's a great image, thank you!

Wonderful, thank you.

Very good.

Thank you.

Very tricky.