I was just wondering if anyone had any tips on how to do the centre for this flower.??
...........just get it to the size and shape I need it to be and press it into a strainer or some netting.?..............
Yes, make a thick(ish) circle of fondant; push it onto a strainer (netting probably will be too close and not look right), then let it dry some over a shallow round object.
i would add tylose to some fondant, roll it into roughly the circular size i want, leaving it reasonably thick, then press gently into the bottom of a curved metal wire sieve and leave to harden. then you should have the texture and shape you need. maybe using black fondant would cut down on the work so it just needed speckling with a little yellow?