Because of the warmth of tawny skin, it can be hard to find perfect makeup shades that look natural. Tawny skin is warm colored similar to a shade of honey, so stick to warm colors for blush and lips. Pink shades can really stand out as unnatural because tawny skin has yellowish undertones rather than pink ones.
Bright fuchsia pinks are too close to the cool side for Tawny skin, so try using lip colors with more of an orange/peach tone to them. If you're going for dramatic lips you can use a muddy color; avoid berry tones that create a huge contrast to your natural skin tone. For a more fun and flirty look, you may want to use a peach lip gloss. Keep to lip shades that have a sunny or earthy color to them.
If you have tawny skin, you should highlight the undertones of your skin when you apply blush. Coppery or bronze shades are great because they create a natural, tanned color on your skin. You can also use a peachy blush. Stay away from baby pink and purplish pink shades as they will stand out more than you need against your base skin tone and you may end up with a painted-doll type of look.
The eyes are where you can add more color to your makeup. Baby pink and light blue aren't going to be your best colors if you have tawny skin. You still want to keep to earth tones, but that doesn't mean you can't have color. Consider a frosted copper or slate gray with a bluish tinge. If you're using a peach lip color you may want to use the darker, reddish, mud tones on your eyes. If you want to make your eyes really stand out, you may want to try an olive green or navy as an eyeliner or shadow color.