Off to a good start.
You may want to read up on anubias in the aquarium. Planting of the rhizome is usually to be avoided. I think you may also want to think about the tank down the road a little. Think of what it might look like when grown in with regards to amount of space, plant color, leaf morphology, etc... Try to select different anubias species to increase the visual appeal.
Personally I think you have too many anubias currently for that tank long term. The appear to be all the same species so won't offer a lot of visual contrast. Small tanks are tricky to scape but can be done for sure.