This is Encyclia x osmentii Sauleda & Esperon, a natural hybrid (E. hamiltonii x E. moebusii).
Seen and photographed in its natural habitat, along river Báez, Baracoa, Guantánamo.
This is the article whereby it was first described: Sauleda, R.P. & P. Esperón, (2016), "A New Natural Hybrid From Eastern Cuba", in New World Orchidaceae – Nomenclatural Notes, Nomenclatural Note – Issue No. 22. https://www.academia.edu/26369851/A_New_Natural_Hybrid_From_Eastern_Cuba
And this is the article documenting the natural locality for the hybrid: Soto Calvo, M.A., P. Esperón, R.P. Sauleda, N. Coutín Lobaina (2019), "A Locality for Encyclia xosmentii Sauleda & Esperon is Documented in Cuba", in New World Orchidaceae – Nomenclatural Notes, Nomenclatural Note – Issue No. 52. https://www.researchgate.net/publication/334429268_A_Locality_for_Encyclia_xosmentii_Sauleda_Esperon_is_documented_in_Cuba
This is an alba variation of Dilomilis olygophylla. Seen and photographed at 582 meters above sea level in the Baracoa Conservation Department of Alexander Humboldt National Park (UNESCO World Natural Heritage Site).
This Lepanthes was first documented by Llamacho, J. A. y Larramendi J. A. (2005), The Orchids of Cuba / Las orquídeas de Cuba, Greta Editores, Lledia, Spain, page 263. It hasn't been described yet. Llamacho and Larramendi reported it at the top of Mount El Yunque (roughly 550 metres above sea level, where it can still be spotted), but this one was photographed at a smaller karst formation right by mount El Yunque, at 320 metres above sea level.
Tetramicra riparia, described in 2012 by Angel Vale & Natividad Laritza Sánchez-Abad: https://www.researchgate.net/publication/232736018_A_New_Species_of_Tetramicra_Orchidaceae_Laeliinae_from_Baracoa_Eastern_Cuba
Listed in Kew Royal Botanic Gardens: https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77127576-1