Looks good to me 
I'm 29 weeks now and don't have a massive bump but all scans and midwife measurements etc. show baby is perfect for dates.
As SomethingOnce said, bump sizes vary enormously and a lot depends on your build/height plus how baby is lying.
I'm very slim normally (size 6/8) and although not very tall at 5 ft 3 my torso is quite long as I have shorter legs. That combined with baby lying head down and longitudinal means my bump isn't huge.
Your bump looks lovely 