Suggestions/help/ideas on new tank coral placement

Okay so, Here' my tank about to start cycling, (48x18x18), under 4 t5's, with a HOB skimmer. The rock is Homemade DIY rock ive just about finished curing and will be seeding using a few bits of liverock rubble.

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Below is the same photo with flow from the wavemakers added (I haven't added the one on the left hand side yet, but it will be the same as the RHS one - a jeboa wp25 on reef mode)

The red arrow is the left PH flow the Green the right one.

The area shaded pink/purple is extremely high flow area
The area shaded orange is medium/high flow area
The area shaded green is low flow area
The rest of the tank can be assumed to be medium flow



Here is my idea of coral placement.

Any issues you can see? any suggestions or things that you think would work better?
Can you suggest anything to go in the 4 areas marked with a '?' please?

I would like to keep away from very hard to keep corals or anything that is going to grow like a weed all over the tank (hence the GSP are on an isolated rock)



Many thanks all, would love to see other peoples suggestions on coral placements and selection for ideas!!