TPC12, or the Utility trouser pattern, from Trend are great style to choose if you like unusual details on a garment. Added to that they will expand your skills for making too, a good reason to slow down and make a style which will stretch you, they need some concentration but the result is worth the effort. An intermediate pattern for someone with a variety of sewing experience so far.
I love the hem vents and the fake pocket flap, and you could customise the style by adding an extra flap or leave them off completely, or add a bellows pocket on the leg. Personally I found the fit of my first pair too roomy and the crotch much too long so I made some alterations on the second pair and they are an improvement. That said, they are really comfortable either way.
I wrote a comprehensive blog post on my experience making the TPC12 if you’re interested which you can read at https://wordpress.com/posts/susanyoungsewing.wordpress.com