Ardesia, both your photos are undoubtedly of begonia hybrids of which there are more than 10,000 and they rhizomatous, the division with the most hybrids. That means they are difficult to know them all or identify them even with a plant or photos of stems and flowers as well as leaves unless they are very well known. I don't recognize either of these although I can tell you that both have species, B. heracleifolia in their background. There are several varieties within this species and your top photo probably has heracleifolia var. sunderbruchii in its background. I'll post a photo of that one.
Species of which there are currently only 1647 are somewhat easier to identify although photos of the flowers are generally required.
