Go online and into the (gasp) library (you know those things called books ) and start looking at images. Then start a "clip book" (digital or physical) of the pieces that you say, "I wish I made that" about. Amass at least 100 images.
Then from that selection of images narrow it down to about 20 images that you REALLY feel strongly about. Put the rest away.
Then (yup....writing) write out the commonalities of traits that you see in the remaining 20 objects. Use the language of the principles of art and design for this as well as and words that stress feelings. Write at length. If initially you can't see connections... look deeper..... they WILL be there.
Then spend some time analyzing that set of commonalities you drafted.
Next....................... take one of your physical pieces from the photo you posted above... and set it on the table in front of you and next to the papers with the listings you just came up with. Ask yourself "What could I do to change THIS piece to reflect some of the common characteristics that I listed"? Write those thoughts down. Then get a sketch pad and using the piece in front of you as a "model", draw the "new" piece as you now envision it. Look at that fuirst sketch and revise it to improce on it. Do that a few times.
Then once you have a couple of sketches..... go MAKE that piece you drew in the last sketch.
THEN.... (nope not done yet)............... look at the new piece and assess what you feel is working on it, and what could be improved.
Make the same exact piece again.... but making ONLY the changes you just articulated. Everything that you did NOT say should be changed should look like a Xerox copy of the prior piece.
Repeat this process on THIS object a number of times.
DO this diligently on the first object...and then a few others the same way................ and you'll no longer be asking about how to do this.