Hello,
A beginner myself here but you peeked my curiosity, so I did a little digging on Grammatophyllum.
Unfortunately these varieties of Orchids (the cultivated ones apparently) seem to be infrequent bloomers, with one grower saying that they waited three years between blooms.
Generally speaking with this variety, from what I've read, it's a bit of an event when it does bloom and well worth the wait.
Hope that helps.
And here's a couple of links that may also help.
Grammatophyllum Orchids,
Grammatophyllum - Gardenology.org - Plant Encyclopedia and Gardening wiki
Here's hoping it blooms sooner rather than later!
PS you other plant looks lovely, but not sure I can help you there.