Caring for new houseplants - eviltoast

The other month I asked for some help choosing plants for my boyfriend’s birthday. Many thanks for all the suggestions! I decided to go for a Philodendron Plowmanii and a Jewel Orchid. They came as unpotted plants, so I just wanted to check that I’ve potted them correctly.

I put some clay pebbles at the bottom and then filled the rest with multi use compost. I made some little holes in the soil and gently placed the plants in, then covered up their roots.

Will they be ok like that, until next week when I can gift them? How much water should I give them?

Thanks for your help :)