No, you don’t need a $3000 camera or a $1500 lens to take professional quality photos. In fact, the difference you will notice between a photo taken with an entry level DSLR camera + the kit lens and the same photo taken with the Canon 5D Mark III for example is minimal compare to the difference you’ll notice between one photo expertly edited in Photoshop and the same that wasn’t.
If you already have Photoshop, (you can download the free trial for 30 days btw) you can improve your photos dramatically by learning how to properly color correct and color grade.
Then, you can take your photos to a whole new level if you can master the art of what we call photomanipulation, compositing and retouching. By mastering those techniques, you will be able to turn your photos into digital art!