Muscle weighs more than fat, so you could see weight plateau or gain due to that as you build muscle.

Other factors like genetics, health issues like Diabetes etc can also play a role in weight loss and you didn't mention if you have any of those.

Weight loss is a numbers game.. more out than coming in.
3500 calories is one pound of actual fat lost. It takes time and should be done slowly.. Rapid weight loss normally doesnt stay off.

Try taking measurements... chest hips waist etc.. and dont just watch the scale. Then count those calories.. stay around 1600 with 40-60 grams of lean protein a day and keep working out increasing times as you can and focus on fitness lifestyle change and not the scale. It will happen..

You may see your measurements and body changing or slimming down without much change on the scale as you burn fat and replace it with muscle.. Be patient!

I do not think y ou are eating enough. I think you should eat 1200 calories a day and spread it out over 5 small meals. Workout in the AM to get your metabolism revved up. Increase cardio if you can.

I find eating large salads are low calorie and very filling. Also good fiber.

Oh.... and you may not be eating enough. The food looks healthy enough, but sometimes the body slows down burning calories if it feels like its not getting enough food.

Looks like you are not eating enough to sustain your burn that you are doing so your body is trying to hold on to what it has. Upping your calories and increasing your fiber might help, can't say more protein thogh I woud certaily cut down on the starches as those tend to cause glucose spikes. Maybe seeing a dietition to help you figure out a eating plan will be helpful to you.