Hi Jamielegge welcome to the forum
The tanks looks really good, have a look through the forum and see what plants people have in there tanks or on websites under the easy to grow sections and just grab a few different types. Dot them and around and see how you get on.
The basics are;
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10x tank turn over in flow from your filter - uniform flow is a must, not two power heads conflicting each other
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A premixed fertiliser - tropica ferts are good but can be expensive for your size tank, so look into other premixed ferts from the sponsors on here
•A liquid carbon additive - there's a few different brands, small dosage will kill of some algae and also help your plants(some plants aren't fans but yourll see which once by searching the forum)
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Lights on a timer!!! 8 hours a day, mine come on just before I get back from work and then goes of before bed.
Many people add loads of lights and for long periods. Your better of with minimal light that way you can have the tank longer for your viewing.
Go to each sub section and read the stickys that are at the top few threads, personally I found them to be brilliant.
oh and good luck,