Before anyone can help, you need to say where on the planet the plot is situated. People will also need to know the compass directions of the yard, what sort of uses it would have and whether or not the owner likes gardening.

IMO the landscaping comes after you decide what you need for entertaining. We have 2200 sq ft of deck part of that is around the pool but we have an outdoor kitchen , a huge dining space to seat 20 a large area for seating with usual set up for 8 and the extra chairs for about 6 more in thta space . We have stools at the outdoor kitchen and some seating along the side of the house for those who want some privacy for a visit or sometimes the kids use that space for baord games, What I am syaing is we need a lot more info and for sure an actual to scale plan of the whole space .

Landscape & hardscape design should be done onsite. i would suggest that you hire a landscape designer to draw up a plan considering your needs, wants , climate, budget (an important consideration), etc.

Looks like the house is in sort of a desert area so I show the backyard with large pavers here & there and landscaping small stones with plants to suit your area also here & there.. A stone floor for the covered porch, sconces and a pendant above the table. Wood planks (or faux decking wood) patio, a pergola. For the ciment block fence, I would paint the columns the same colour as the house and install horizontal wood slats between the columns.

You need some trees. I'd start with them.

Perhaps you could try these suggestions? https://www.quictents.com/blogs/news/top-6-trends-to-improve-home-landscape-in-2023

You have a great big beautiful area. You need some shade! A pergola made for blocking sun would give you shade and create a space for outdoor dining or an outdoor living room!

Pergolas can also have shade cloth covers… that can be removed in the winter if you want to allow the sun in .. winter

S D: You've received a few suggestions, have you done anything?