Hello Ahmed, first there is a style point that has to be mentioned : if you hate your big thighs, chinos are definitely not the type of trousers you want to wear. They are designed for straight legs and will emphasize any protuberant part of the body (be it thighs, calves, ass; any) instead of easing the lines of the body.
This being said, there are a few points, I see that can improve the overall result of your pattern as to what your goal is.
1- Do the cuffs at the bottom of the legs. You cannot get any good sense of the hang if you don't at list pin/baste them.
2- Always remember that trousers are a suspended structures, the suspension lines being the waist and the crotch. Consequently, these are those you want to spend most of your time working on.
So first, you have to improve the waist line. First, if you want to wear your trousers at this hight, eliminate the gap in the center front (Fig1 : F1) and if you want to wear it higher, create a incurved line (Fig1 : F2).
Second, you need to bring the side seam of the front panel up. Especially if you want to use a belt and not braces.
3- About the crotch line. Your fork angles are too acute. You need the sum of them to be 180° (Fig 2) in order to have a nice line.
You can achieve that by straightening your inseams. Fig 3 : Blue lines
Optionally, bring your front and back forks in, the girth at the crotch seems way too big. Also, you can lower fork point of the back panel. That way, you will also make sure that the back inseam is shorter than the front inseam (I would not recommend more than a 1 - 1.5 cm difference with cotton) which visaully doesn't seem to be the case in your draft (but I can be wrong on that). Fig 3 : green lines
4- I have concerns about the sideseam of the front panels between knees and seat. I find them to have too much curvature. This translates into the big gaping that can be seen above your knees. You need to smoothen that curve (Fig4 : blue lines)
5- Finally, you lack fabrics around your calves. You can round the back panels but that would take you away from you desire to do a chino pattern. Thus I would advise to just widen around the knee, which will help keep the straight line of the chino cut ant at the same time give some room to your calves.
When you have done all that and have trousers that hang good, you can concern with gaping pockets.
Edited by LuKas02, 21 June 2017 - 07:40 PM.