Using expensive cosmetics does not guarantee a flawless look if fundamental makeup errors are made. From personal experience, choosing the wrong foundation shade is a common but critical mistake. For instance, if you have dry skin and opt for a dense matte foundation, it tends to accentuate all imperfections rather than conceal them. A better approach is to select a hydrating or luminous foundation that works with your skin type to create a smooth, natural finish. Another mistake many make is applying too much foundation. I found that layering foundation in thin, even coats gives a much lighter, more natural look and prevents the makeup from feeling heavy or cakey. Equally important is using the right tools: using a dry sponge can lead to patchy application, so dampening the sponge or using a brush ensures an even distribution of product. Eyebrows can also make or break your makeup. Overly dark or harsh brows, especially when drawn with a very dark pencil or shade deeper than your natural color, can look unnatural and overpower the face. Softening the color to match your hair tone and using hair-like strokes creates a more balanced, harmonious effect. Finally, I've noticed that avoiding these errors greatly enhances the overall impact of your makeup, regardless of how costly the products are. Makeup is an art, and understanding how to work with your skin type and features matters more than the price tag. If you're interested in improving your makeup skills, consider attending courses that focus on makeup for yourself, which can offer personalized guidance tailored to your unique needs.