Nasturtium - first use of extension tubes

I'll need to practise with these quite a bit but enjoyed starting with them today. when all three tubes are on makes the camera quite tricky to hold and I haven't yet got autofocus to work - I'm not sure if it is supposed to or not with the tubes on!
Getting the depth of field I am after is proving a challenge.

What with that and going to see the Matisse cut outs with my Mum and a trip to Ikea it's been a Friday with quite a bit of novelty.