blue

Illustration of the Columbine Aquilegia vulgaris examing different anatomy and colour forms of the flowers along with the seed pods and soft green lobed leaves

Sketchbook study of the Cornflower Centaura cyanus showing its rich blue colour and details of individual florets as well as of the thin leaves and flowering head, some details in colour and some in tonal pencil

Rainbow agama lizard Agama agama pen and ink

Siamese fighting fish Betta splendens battling

Sandtiger shark Carcharias Taurus

Common roach Rutilus rutilus

Vertebrate embryos comparing growth forms in chart form

Landscape showing an ancient oak woodland with oak trees which were last pollarded years ago, the under storey is carpeted with bluebells, the trees are hung with lichen, and there are moths in the foreground settled on a patch of wild spring flowers

Peacock pavo pair with male tail on display, disintersted peahen passing by in front of him

Blue-tit Parus caeruleus male on a branch

Blue tit Parus caeruleus adult feeding chicks inside a bird box

Blue tit Parus caeruleus, Coal tit, Long tailed tit, and great tits in a Scots pine tree with cowslip and snakeshead fritillary growing underneath