There are many examples of male to female makeup transformations on couples.

Here are a few videos that I found:
⦁ I transformed my husband into a girl|Boy to Girl Makeup Transformation due to Home Quarantine by All About Belle. This video shows a husband and wife who are both transgender. The husband is transitioning from male to female, and the wife is transitioning from female to male. They both do each other’s makeup, and the results are very natural-looking.

I transformed my husband into a girl|Boy to Girl Makeup Transformation due to Home Quarantine video
⦁ Man To Woman / Boy to Girl Makeup Transformation by Divya by Divya. This video shows a man who is transitioning from male to female. He does his own makeup, and the results are very impressive.

⦁ Male to Female Makeup Tutorial | MtF | Party look | boy to Girl| Saree video | Crossdressing by Riya’s Touch. This video shows a makeup tutorial for a male to female transformation. The tutorial covers all the basics, from foundation to lipstick.

If you are looking for tips or advice on male-to-female makeup application for both you and your husband, here are some general suggestions:
⦁ Skincare: Prioritize good skincare as a foundation for a smooth makeup application. Cleanse and moisturize your face before applying any makeup. Exfoliating regularly can help achieve a smoother canvas.
⦁ Foundation: Use a foundation that matches your skin tone to create an even complexion. Apply it with a makeup sponge, brush, or your fingertips. Blend it well for a natural look.
⦁ Concealer: Apply concealer to areas with blemishes, dark circles, or any other discoloration. Blend it gently with a sponge or brush for a seamless finish.
⦁ Contouring and Highlighting: Use contouring and highlighting techniques to enhance facial features and create dimension. Apply a contour shade in the hollows of the cheeks and along the jawline, and apply a highlighter on the high points of the face, such as the cheekbones and bridge of the nose.
⦁ Eyebrows: Shape and fill in your eyebrows using an eyebrow pencil or powder. Follow the natural shape of your brows and create small, hair-like strokes for a more realistic appearance.
⦁ Eye Makeup: Apply eyeshadow in shades that complement your skin tone and eye color. Use eyeliner to define your eyes, and mascara to enhance your lashes. False eyelashes can also be used to add volume and length.
⦁ Lips: Apply a lip liner that matches your desired lipstick color, then fill in with lipstick or lip gloss. Experiment with different shades to find what suits your style and complexion.
⦁ Practice and Experiment: Makeup application is a skill that improves with practice. Experiment with different techniques, products, and colors to find what works best for you and your husband. Consider watching makeup tutorials or seeking guidance from professional makeup artists.

Remember, makeup is a personal expression, and there are no set rules. Have fun with it and embrace your individual styles. If you and your husband desire more specific or detailed guidance, consider consulting with a professional makeup artist who specializes in transgender or gender-affirming makeup. They can provide personalized advice and techniques tailored to your unique features and goals.