anyone good in making portraits here?

What would you like to know? If it's photographic portraits, I can help.

Well, I like your attempt to get a decent background; wood grain is a good choice. I have a few ideas.
1. Don't shoot from a low angle. A slightly higher angle is more flattering.
2. Use two lights, at a 45 degee angle on each side of the subject.
3. Make one light farther back to get a bit of modeling from shadows.
4. Try to "bounce" the light off a reflecting surface, to reduce harsh shadows.
5. A slightly longer lens, like a 100mm short telephoto will produce a more pleasing proportion.

The low angle and a slightly turned body makes for a strong portrait, but not a particularly pleasant one.

You can improvise, if you look around:

This one was shot under a roof open on three sides. It was close to noon. It was quite dark under the roof, and I exposed for that, blowing out the background, which isolated the subjects. The one wall (on the left) reflected enough light back to open up the shadows a bit on the dark side.

And it worked pretty well for a spur-of-the-moment shot.

@PatrickT
You can always try a solid color as a background whilst wearing clothes that won't make you blend in.

Usually a dark blue or white or even black background work great. If all fails, surely we could help edit your pic with your permission.

Good luck!