Sketch of the Week: Two toned roses

I haven't had a bouquet in the house for a while, so these roses have been a welcome addition to my sketchbook:

I didn't include all the blooms here, but instead took advantage of atmospheric perspective to suggest their presence. Given their numerous petals, roses can sometimes appear intimidating to draw, but I've always found they're manageable if you see them as lines and shapes rather than flowers. I particularly liked the two-tone colors on these. Having the yellow blooms outlined with bold red helped me to better discern the individual petals.